I always figure hey, look, I'm not a rock star, I'm an actor. I'm somebody who's meant to be other people and I'm not meant to be here representing myself. I'm happier when I'm presenting myself as other characters.
Trying to sneak a fastball past Hank Aaron is like trying to sneak the sunrise past a rooster.
If you really do want to be an actor who can satisfy himself and his audience, you need to be vulnerable. You must reach the emotional and intellectual level of ability where you can go out stark naked, emotionally, in front of an audience.