I really believe the only way to stay healthy is to eat properly, get your rest and exercise. If you don't exercise and do the other two, I still don't think it's going to help you that much. ↗
Just because you liked something as a youngster doesn't mean you have to like it as an adult. You can change your taste a little bit on the sweets and things like that. ↗
I think in the bullpen you can tell during your warmups, if you have a good feel for it. But anything can happen once you get into a game. Sometimes you just wind up throwing it better than ever before one day without knowing why. ↗
If you're actually allowing your creative part to control your writing rather than a more commercial instinct or motive, then you'll find that all sorts of interesting things will bubble up to the surface. ↗