Some people have succeeded before, but why can't they succeed continuously afterward? It's because they've already forgotten how they worked when they were poor before their first success. When doing new things, they become unwilling to personally do everything from 0 to 1 with all their effort, or they fear they won't do well and doubt themselves with "Can I do this?", or they fear losing face, feeling embarrassed, afraid of being seen by acquaintances, thinking "What will others think of me if I do this?"
Some people have succeeded before, but why can't they succeed continuously afterward? It's because they've already forgotten how they worked when they were poor before their first success. When doing new things, they become unwilling to personally do everything from 0 to 1 with all their effort, or they fear they won't do well and doubt themselves with "Can I do this?", or they fear losing face, feeling embarrassed, afraid of being seen by acquaintances, thinking "What will others think of me if I do this?"