If and when he tries something else, he'll probably figure out exactly how much he learned. Until then, there's going to be a lot of regret to contend with. Esp

If and when he tries something else, he'll probably figure out exactly how much he learned. Until then, there's going to be a lot of regret to contend with. Especially if he keeps looping "I can not believe I was so stupid to think an idea I had could make it." Good ideas often fail. Bad ideas can lead to ones that win. And persistence makes a hell of a difference. In that regard, he's got a lot going for him. Right now, he's burnt out. That should be treated like a health problem (i.e. one from which you can recover, given suitable time, rest, and diligent self-care). I'm betting that, if he focuses on his personal life for a while, and just makes a point of enjoying his days one at a time, the itch to try something new and daring will return sooner than he expects.