https://www.youngju.dev/blog 천천히 올바르게. AI Researcher & DevOps Engineer Youngju's blog. GPU/CUDA, LLM, MLOps, Kubernetes AI workloads, and data engineering — plus mindset essays on confidence, routines, health, and sport psychology. ko fjvbn2003@gmail.com (Youngju Kim) fjvbn2003@gmail.com (Youngju Kim) Mon, 20 Jul 2026 00:00:00 GMT https://www.youngju.dev/blog/mindset/boundaries-people-pleasing.en https://www.youngju.dev/blog/mindset/boundaries-people-pleasing.en This is for the person whose calendar has been filled with requests from others because saying no feels impossible, the person carrying the fatigue traded for a reputation as a good person to everyone. It talks about how kindness and having no boundaries are different things, and how declining, far from damaging relationships, is what makes them sustainable. It collects phrases for saying no with less guilt, the buffer technique of not accepting requests on the spot, and ways to move through the discomfort that arrives when you start drawing the line. Mon, 20 Jul 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) mindsethealingboundariesrelationshipscommunication https://www.youngju.dev/blog/mindset/boundaries-people-pleasing.ja https://www.youngju.dev/blog/mindset/boundaries-people-pleasing.ja 断れなくてカレンダーが他人の頼みごとで埋まっている人、みんなにとっていい人という評判と引き換えに疲れを抱えて生きている人のための記事です。優しさと境界線のなさは別物だということ、断ることは関係を壊すどころか持続可能にするということを話し、罪悪感を減らす断りの文章、頼みごとを即答で受けないバッファの技術、そして境界線を立てるときに訪れる不快感の通り抜け方をまとめました。 Mon, 20 Jul 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) mindsethealingboundariesrelationshipscommunication https://www.youngju.dev/blog/mindset/boundaries-people-pleasing https://www.youngju.dev/blog/mindset/boundaries-people-pleasing 거절을 못 해서 캘린더가 남의 부탁으로 가득 찬 사람, 모두에게 좋은 사람이라는 평판과 맞바꾼 피로를 안고 사는 사람을 위한 글입니다. 착함과 경계선 없음은 다르다는 것, 거절이 관계를 해치기는커녕 지속 가능하게 만든다는 것을 이야기하고, 죄책감을 줄이는 거절의 문장들과 부탁을 바로 받지 않는 버퍼의 기술, 그리고 경계선을 세울 때 찾아오는 불편함을 통과하는 법을 정리했습니다. Mon, 20 Jul 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) mindsethealingboundariesrelationshipscommunication https://www.youngju.dev/blog/mindset/boundaries-people-pleasing.zh https://www.youngju.dev/blog/mindset/boundaries-people-pleasing.zh 这篇文章写给因为不会拒绝、日历被别人的请托填满的人,写给用"对谁都是好人"的名声换来一身疲惫的人。文中谈到善良与没有边界是两回事,拒绝非但不会伤害关系,反而让关系得以长久;并整理了减轻负罪感的拒绝句式、不当场应承请托的缓冲技巧,以及穿过立起边界时随之而来的不适的方法。 Mon, 20 Jul 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) mindsethealingboundariesrelationshipscommunication https://www.youngju.dev/blog/mindset/burnout-permission-to-stop.en https://www.youngju.dev/blog/mindset/burnout-permission-to-stop.en The harder you have worked, the less you know how to stop. Burnout is a condition that arrives from the opposite side of laziness. This post walks through the three signals of burnout as defined by the World Health Organization, how to return rest to its place as part of the work rather than a luxury, and the words we should offer ourselves during recovery. If you are exhausted right now, this post is less a to-do list and more a permission slip that says it is okay to rest. Mon, 20 Jul 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) mindsethealingburnoutrestrecovery https://www.youngju.dev/blog/mindset/burnout-permission-to-stop.ja https://www.youngju.dev/blog/mindset/burnout-permission-to-stop.ja 頑張って生きてきた人ほど、立ち止まり方を知りません。バーンアウトは怠惰の対極からやってくる病だからです。世界保健機関が定義したバーンアウトの三つのサインを確認し、休息を贅沢ではなく仕事の一部に戻す方法、そして回復期に自分へかけるべき言葉をまとめました。いま疲れている方にとって、この記事はやることリストではなく、休んでもいいという許可に近いものです。 Mon, 20 Jul 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) mindsethealingburnoutrestrecovery https://www.youngju.dev/blog/mindset/burnout-permission-to-stop https://www.youngju.dev/blog/mindset/burnout-permission-to-stop 열심히 살아온 사람일수록 멈추는 법을 모릅니다. 번아웃은 게으름의 반대편에서 오는 병이기 때문입니다. 세계보건기구가 정의한 번아웃의 세 가지 신호를 살펴보고, 쉼을 사치가 아니라 일의 일부로 되돌리는 방법, 그리고 회복기에 스스로에게 건네야 할 말들을 정리했습니다. 지금 지쳐 있는 분이라면, 이 글은 해야 할 일 목록이 아니라 쉬어도 된다는 허락에 가깝습니다. Mon, 20 Jul 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) mindsethealingburnoutrestrecovery https://www.youngju.dev/blog/mindset/burnout-permission-to-stop.zh https://www.youngju.dev/blog/mindset/burnout-permission-to-stop.zh 越是努力生活的人，越不懂得如何停下来。因为倦怠是一种从勤奋那一端袭来的病。本文梳理了世界卫生组织定义的倦怠三大信号，讲述如何把休息从奢侈品变回工作的一部分，以及恢复期应该对自己说的话。如果你此刻正感到疲惫，这篇文章不是一份待办清单，而更像一张允许你休息的许可证。 Mon, 20 Jul 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) mindsethealingburnoutrestrecovery https://www.youngju.dev/blog/mindset/comparison-trap-healing.en https://www.youngju.dev/blog/mindset/comparison-trap-healing.en The urge to compare yourself with others does not switch off just because you want it to. Comparison is a basic cognitive function of being human. The problem is not comparison itself, but the fact that comparison in the age of social media has become a structurally unfair game. Through the lens of social comparison theory, this post looks at why we keep measuring our everyday average against the edited peaks of others, and how to redirect comparison instead of switching it off — toward your past self, toward process metrics, and toward defining your own event. Mon, 20 Jul 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) mindsethealingsocial-comparisonself-esteemsns https://www.youngju.dev/blog/mindset/comparison-trap-healing.ja https://www.youngju.dev/blog/mindset/comparison-trap-healing.ja 他人と比べる心は、消そうとしても消えません。比較は人間の基本的な認知機能だからです。問題は比較そのものではなく、SNS時代の比較が構造的に不公平なゲームになってしまったこと。社会的比較理論のレンズを通して、なぜ私たちはいつも編集済みの最高の瞬間と自分の平均を比べてしまうのかを確認し、比較をやめる代わりに向きを変える方法 — 昨日の自分、プロセスの指標、自分だけの種目の定義 — をお話しします。 Mon, 20 Jul 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) mindsethealingsocial-comparisonself-esteemsns https://www.youngju.dev/blog/mindset/comparison-trap-healing https://www.youngju.dev/blog/mindset/comparison-trap-healing 남과 비교하는 마음은 끄려고 해도 꺼지지 않습니다. 비교는 인간의 기본 인지 기능이기 때문입니다. 문제는 비교 자체가 아니라, SNS 시대의 비교가 구조적으로 불공정한 게임이 되었다는 점입니다. 사회 비교 이론의 렌즈로 왜 우리는 늘 편집된 최고점과 나의 평균을 비교하게 되는지 살펴보고, 비교를 끄는 대신 방향을 바꾸는 법 — 어제의 나, 과정 지표, 나만의 종목 정의 — 을 이야기합니다. Mon, 20 Jul 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) mindsethealingsocial-comparisonself-esteemsns https://www.youngju.dev/blog/mindset/comparison-trap-healing.zh https://www.youngju.dev/blog/mindset/comparison-trap-healing.zh 与他人比较的心，想关也关不掉。因为比较是人类的基本认知功能。问题不在比较本身，而在于社交媒体时代的比较，已经变成一场结构性不公平的游戏。本文借助社会比较理论的视角，看看我们为什么总是拿别人剪辑过的最高光时刻与自己的日常平均值相比，并聊聊与其关掉比较、不如调转方向的方法 — 昨天的自己、过程指标、定义属于自己的项目。 Mon, 20 Jul 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) mindsethealingsocial-comparisonself-esteemsns https://www.youngju.dev/blog/mindset/doing-nothing-day.en https://www.youngju.dev/blog/mindset/doing-nothing-day.en There are days when you turn off the alarm and still cannot get out of bed, days when you know what needs doing but your body will not move. Read such a day as a failure of willpower and the self-blame begins, and self-blame drains even more energy. This post proposes a different way to read it: listlessness as a signal, breaking all-or-nothing thinking, ten-minute versions and a pre-designed minimum day, and how to tell apart the days that truly call for rest — a user manual for the days you feel like doing nothing. Mon, 20 Jul 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) mindsethealingmotivationrestself-compassion https://www.youngju.dev/blog/mindset/doing-nothing-day.ja https://www.youngju.dev/blog/mindset/doing-nothing-day.ja アラームを止めてもベッドから出られない日、やるべきことは分かっているのに体が動かない日があります。そんな日を意志力の失敗として読むと自責が始まり、自責はさらにエネルギーを奪います。この記事は、そんな日の別の読み方を提案します。シグナルとしての無気力、全か無か思考の壊し方、10分バージョンと最小限の一日の設計、そして本当に休むべき日の見分け方まで — 何もしたくない日のための取扱説明書です。 Mon, 20 Jul 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) mindsethealingmotivationrestself-compassion https://www.youngju.dev/blog/mindset/doing-nothing-day https://www.youngju.dev/blog/mindset/doing-nothing-day 알람을 끄고도 침대에서 나오지 못하는 날, 해야 할 일을 알면서도 몸이 움직이지 않는 날이 있습니다. 그런 날을 의지력의 실패로 읽으면 자책이 시작되고, 자책은 에너지를 더 빼앗습니다. 이 글은 그런 날을 다르게 읽는 법을 제안합니다. 신호로서의 무기력, 전부 아니면 전무 사고 깨기, 10분 버전과 최소 하루 설계, 그리고 정말 쉬어야 하는 날을 구분하는 법까지 — 아무것도 하기 싫은 날을 위한 사용 설명서입니다. Mon, 20 Jul 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) mindsethealingmotivationrestself-compassion https://www.youngju.dev/blog/mindset/doing-nothing-day.zh https://www.youngju.dev/blog/mindset/doing-nothing-day.zh 有些日子,关掉闹钟也起不来床;明知道该做什么,身体却一动不动。如果把这样的日子读成意志力的失败,自责就会开始,而自责会夺走更多能量。这篇文章提出另一种读法:把无力当作信号、打破全有或全无思维、准备10分钟版本与最低限度的一天,再到分辨真正需要休息的日子——一份写给什么都不想做的日子的使用说明书。 Mon, 20 Jul 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) mindsethealingmotivationrestself-compassion https://www.youngju.dev/blog/mindset/late-night-overthinking.en https://www.youngju.dev/blog/mindset/late-night-overthinking.en Some nights you are fine all day, and then the worries pour in the moment you lie down. That is not weak willpower — night is simply the worst possible time for the brain to handle worry. Drawing on the psychology of rumination and worry, this is a prescription pad of tools you can use instead of fighting to stop your thoughts: scheduling worry time, writing things out of your head, the cognitive shuffle, and long-exhale breathing. You can use them tonight. Mon, 20 Jul 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) mindsethealinganxietysleeprumination https://www.youngju.dev/blog/mindset/late-night-overthinking.ja https://www.youngju.dev/blog/mindset/late-night-overthinking.ja 昼間は平気だったのに、横になった途端に心配ごとが押し寄せてくる夜があります。それは意志が弱いからではなく、夜の脳が心配ごとを扱うのに最も不利な状態にあるからです。反芻と心配の心理学をもとに、考えを止めようとする戦いの代わりに使える道具 — 心配時間の予約、頭の外に書き出すこと、認知シャッフル、長く吐く呼吸 — を処方箋のようにまとめました。今夜からすぐに使えます。 Mon, 20 Jul 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) mindsethealinganxietysleeprumination https://www.youngju.dev/blog/mindset/late-night-overthinking https://www.youngju.dev/blog/mindset/late-night-overthinking 낮에는 멀쩡하다가 눕기만 하면 걱정이 쏟아지는 밤이 있습니다. 그것은 의지가 약해서가 아니라, 밤의 뇌가 걱정을 다루기에 가장 불리한 상태이기 때문입니다. 반추와 걱정의 심리학을 바탕으로, 생각을 멈추려는 싸움 대신 쓸 수 있는 도구들 — 걱정 시간 정하기, 머리 밖으로 꺼내 적기, 인지 셔플, 날숨 호흡 — 을 처방전처럼 정리했습니다. 오늘 밤 바로 쓸 수 있습니다. Mon, 20 Jul 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) mindsethealinganxietysleeprumination https://www.youngju.dev/blog/mindset/late-night-overthinking.zh https://www.youngju.dev/blog/mindset/late-night-overthinking.zh 有些夜晚,白天还好好的,一躺下担忧就倾泻而来。这不是因为意志薄弱,而是因为夜晚的大脑正处于最不适合处理担忧的状态。本文以反刍与担忧的心理学为基础,把可以代替"和念头硬拼"的工具——预约担忧时间、把想法写出脑外、认知洗牌、延长呼气——像处方笺一样整理了出来。今晚就能用上。 Mon, 20 Jul 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) mindsethealinganxietysleeprumination https://www.youngju.dev/blog/mindset/self-compassion-courage.en https://www.youngju.dev/blog/mindset/self-compassion-courage.en On the days we make mistakes, we say the most hurtful things to ourselves — things we would never say to a friend. Through the three elements identified by self-compassion pioneer Kristin Neff (self-kindness, common humanity, mindfulness), this post explores why being kind to yourself is not self-indulgence or laziness but a condition for recovery and growth. It is time to part with the old belief that self-criticism is the whip that keeps us going. Mon, 20 Jul 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) mindsethealingself-compassionresilienceself-esteem https://www.youngju.dev/blog/mindset/self-compassion-courage.ja https://www.youngju.dev/blog/mindset/self-compassion-courage.ja 失敗した日、私たちはいちばん痛い言葉を自分に向けます。友人には決して言わないような言葉をです。セルフコンパッション研究の開拓者クリスティン・ネフが整理した三つの要素(自分へのやさしさ、共通の人間性、マインドフルネス)を通して、自分にやさしくすることがなぜ自己正当化や怠慢ではなく、回復と成長の条件なのかを見ていきます。自己批判こそが鞭だという古い信念と、別れるときが来ました。 Mon, 20 Jul 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) mindsethealingself-compassionresilienceself-esteem https://www.youngju.dev/blog/mindset/self-compassion-courage https://www.youngju.dev/blog/mindset/self-compassion-courage 실수한 날, 우리는 가장 아픈 말을 자신에게 합니다. 친구에게라면 절대 하지 않을 말들을요. 자기연민 연구의 개척자 크리스틴 네프가 정리한 세 가지 요소(자기 친절, 보편적 인간성, 마음챙김)를 통해, 자신에게 친절한 것이 왜 자기합리화나 나태가 아니라 회복과 성장의 조건인지 살펴봅니다. 자기비판이 채찍이라는 오래된 믿음과 헤어질 시간입니다. Mon, 20 Jul 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) mindsethealingself-compassionresilienceself-esteem https://www.youngju.dev/blog/mindset/self-compassion-courage.zh https://www.youngju.dev/blog/mindset/self-compassion-courage.zh 犯错的那天，我们会把最伤人的话说给自己听 — 那些绝不会对朋友说的话。本文通过自我关怀研究开拓者克里斯汀·内夫总结的三个要素(善待自己、共通人性、正念)，来看看善待自己为什么不是自我开脱或懒惰，而是恢复与成长的条件。是时候告别"自我批评才是鞭子"这个古老的信念了。 Mon, 20 Jul 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) mindsethealingself-compassionresilienceself-esteem https://www.youngju.dev/blog/psych-papers/gratitude-journal-science.en https://www.youngju.dev/blog/psych-papers/gratitude-journal-science.en The gratitude journal, that staple prescription of self-help content, traces back to the 2003 counting-blessings experiment by Emmons and McCullough. The group that wrote down five things they were grateful for each week ended up happier than the group that listed hassles, exercised more, and even slept better. Yet the effect sizes in later meta-analyses are humbler than the advertising. This series finale reads the three experiments of the original paper in order and sorts out what honestly remains — a small but cheap and safe intervention — along with the conditions that amplify the effect and how to keep the habit from going stale. Mon, 20 Jul 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) psychologypaper-reviewmindsetgratitudehealing https://www.youngju.dev/blog/psych-papers/gratitude-journal-science.ja https://www.youngju.dev/blog/psych-papers/gratitude-journal-science.ja 自己啓発書の定番処方である感謝日記の出典は、2003年のエモンズとマカローによる祝福を数える実験です。毎週、感謝したことを5つ書いたグループは、悩みの種を書いたグループより幸福で、運動量が多く、睡眠まで良くなっていました。ただし、後続のメタ分析が語る効果量は宣伝より控えめです。原論文の3つの実験を順に読み、誇張なしに残るもの（小さいが安価で安全な介入）、効果を高める条件、そして形骸化させずに続けるコツまで整理した、シリーズ完結編です。 Mon, 20 Jul 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) psychologypaper-reviewmindsetgratitudehealing https://www.youngju.dev/blog/psych-papers/gratitude-journal-science https://www.youngju.dev/blog/psych-papers/gratitude-journal-science 자기계발서의 단골 처방인 감사 일기의 출처는 2003년 에먼스와 매컬러프의 축복 세기 실험입니다. 매주 감사한 일 다섯 가지를 적은 그룹은 골칫거리를 적은 그룹보다 더 행복했고, 운동을 더 했고, 잠까지 더 잘 잤습니다. 다만 후속 메타분석이 말하는 효과 크기는 광고보다 겸손합니다. 원 논문의 세 실험을 차례로 읽고, 과장 없이 남는 것(작지만 값싸고 안전한 개입)과 효과를 높이는 조건, 그리고 시들지 않게 쓰는 법까지 정리한 시리즈 완결편입니다. Mon, 20 Jul 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) psychologypaper-reviewmindsetgratitudehealing https://www.youngju.dev/blog/psych-papers/gratitude-journal-science.zh https://www.youngju.dev/blog/psych-papers/gratitude-journal-science.zh 感恩日记是自我提升内容里的常客处方，它的出处是2003年埃蒙斯与麦卡洛的数算幸福实验。每周写下五件感恩之事的组，比记录烦心事的组更幸福、运动更多，连觉都睡得更好。不过，后续元分析给出的效应量比广告词谦逊得多。本篇按顺序读完原论文的三个实验，梳理去掉夸张后剩下的东西（一项小而便宜且安全的干预）、放大效果的条件，以及不让它枯萎的用法 — 系列至此完结。 Mon, 20 Jul 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) psychologypaper-reviewmindsetgratitudehealing