Directing is: you're overwhelmed the whole time. Your mind never stops. If you care about it. You wake up in the morning and you begin thinking about it and then you go to sleep at night and you're still thinking about it.
I hate the stereotype of the pitfalls of the child actor. There are so many amazing examples - Natalie Portman Joseph Gordon-Levitt Jodie Foster Drew Barrymore - of people who have made it through.