Last night I was lucky enough to go to a meeting/mini-seminar with Rosemarie Ballard. She is a famous clown, mime, dancer, actress, entertainer, etc. She's 64 years old and still doing flat falls and has twice my energy! She gave a great tip about getting over being nervous before you perform. She said instead of saying you are nervous, say you are excited. Feeling nervous and excited feel the same physically, but mentally, they change how you feel.
So next time you are going to head out on stage , instead of saying you are nervous, say you are excited. I'm gonna try it next time.