The only way to deal with yourself as an actor is to follow the emotional truth of what you have to do under the imaginary circumstances. And as you develop you become confident. You come to believe in what you're doing and trust it because it's out of you.
Sanford MeisnerI'll tell you this: you cannot escape the impact of emotion, whether it's in a big theater or a tiny one. If you have it, it inflates you — correction, 'inflates' is not a good word. If you have it, it infects you and the audience. If you don't have it — don't bother; just say the lines as truthfully as you are capable of doing. You can't fake emotion. It immediately exposes the fact that you ain't got it.
Sanford Meisner