Once in awhile, there's stuff that makes me say, That's what theatre's about. It has to be a human event on the stage, and that doesn't happen very often.
I started off as a theatre designer, and by some extraordinary circumstance I saw something in Stratford-upon-Avon, and realized that that's the kind of design I want, but also that that's the kind of designer I'll never be.
If you have the emotion, it infects you and the audience. If you don't have it don't bother; just say your lines as truthfully as you are capable of doing. You can't fake emotion.
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.
You can't learn to act unless you're criticized. If you tie that criticism to your childhood insecurities you'll have a terrible time. Instead, you must take criticism objectively, pertaining it only to the work being done.
Young actors, fear your admirers! Learn in time, from your first steps, to hear, understand and love the cruel truth about yourselves. Find out who can tell you that truth and talk of your art only with those who can tell you the truth.