All in AIAll in AI

Overview概述

A door-to-door coaching business with friends brought in ¥400K+ a year, but travel, parent communication and repetitive teaching crowded out learning and reflection. This essay explains why I left for AI and content creation, putting long-term growth back at the centre.与朋友一起做上门体育教培，年营收 40w＋，但往返路程、家长沟通与重复教学挤掉了学习和思考的时间。这篇长文解释了我为什么退出教培，转向 AI 与内容创作，把长期积累放回生活的主线。

Key points要点

1. Revenue alone misses the time cost of travel, communication and customer acquisition.看营收，也看真实时间成本：上门路程、教学之外的沟通和获客，都在消耗精力。
2. Repetitive work squeezed out agency, leaving less energy for English, reading and reflection.重复性工作压缩了主体性：忙到只想休息，原本留给英语、阅读和思考的时间越来越少。
3. Early adulthood is a chance to build knowledge and methods, rather than rely only on trading hours and physical effort for income.年轻时更需要积累认知与方法，而不是一直靠时间和体力换收入。
4. Moving into AI and X is still an exploration. Learning from peers and broadening my thinking matter even before monetisation.转向 AI 和 X 仍处在摸索期；认识优秀同龄人、拓展认知，也是尚未变现时的重要收获。
5. Build habits through steady output, learning and reflection, accepting that results take time.用持续输出、积累和反思形成习惯，接受结果需要时间。