When you're a famous, successful person at 16 years old, the rules change for you. Everybody is doing things for you to make life easier so you can go out and play. And I think you miss out on lot of growing up and a lot of reality checks.
Even though there are a lot of bright tennis players out there, you still have to protect yourself and save all your mental and emotional energies for tennis.
To be a tennis champion, you have to be inflexible. You have to be stubborn. You have to be arrogant. You have to be selfish and self-absorbed. Kind of tunnel vision almost.
If you can react the same way to winning and losing, that's a big accomplishment. That quality is important because it stays with you the rest of your life, and there's going to be a life after tennis that's a lot longer than your tennis life.