It's definitely nerve-racking to be the center of attention. I'm not the kind of an actor that just craves attention 24-7 - but it's part of the deal. You're the leader on the set.
The secret of the truly successful, I believe, is that they learned very early in life how not to be busy. They saw through that adage, repeated to me so often in childhood, that anything worth doing is worth doing well.
To live life well is to express life poorly; if one expresses life too well, one is living it no longer.

