>If I had a time machine, I would have stayed in better shape, practiced guitar more, invested my time more wisely. But I can't
In another response you're saying you are 32. you are little more than one(!) decade into your adult and professional life. Christoph Waltz barely was making a living acting until he was 50 years old. With the exception of maybe being a soccer world class athlete you can pretty much still do anything you want.
An older guy I used to work with in China who was sent to some labor farm for half a decade and who only went on to study in his thirties told me when this discussion came up one time "don't worry, if you're younger than 45 you can just start over, everyone here has done it five times"
In another response you're saying you are 32. you are little more than one(!) decade into your adult and professional life. Christoph Waltz barely was making a living acting until he was 50 years old. With the exception of maybe being a soccer world class athlete you can pretty much still do anything you want.
An older guy I used to work with in China who was sent to some labor farm for half a decade and who only went on to study in his thirties told me when this discussion came up one time "don't worry, if you're younger than 45 you can just start over, everyone here has done it five times"