You don't need an audience to complete you.
You need an audience to accept you completely.
When you're on stage you mean the world to your audience, reciprocate the feeling.
Over thinking is fear based. Stop being afraid of what could go wrong and start thinking about what could and most likely IS going to go right. Would it kill you to have a little faith? ;)
Identity is very important for comedy.
YOUR voice. YOUR take. YOUR special feel.
What is it that YOU find funny and from what direction do YOU feel it should go.