When I took my first speech class, it was an actress in my class who told me how to overcome my nervousness. She said, don't think of yourself as someone giving a speech. Instead, think of yourself as an actor delivering the speech. What this does is to allow us to step outside of ourselves and to be someone else — what actors must do. When you're someone else, you are no longer nervous, since its no longer you. So, the first thing to do is think of yourself as an actor on the stage.