Being a good race car driver is one thing, but to take all the time commitments and all the pushing and pulling and learning when to say no - because you need to rest or focus on the things you need to do to make the car go fast - those are the hardest things to learn and the most distracting things to learn.
I've been a part of this before, where you think the racing gods are against you, then next thing you know, you can't do anything wrong. You're winning races and doing things you feel like you shouldn't have done that particular day. It all comes full circle in this sport. It has a funny way of doing it.