I auditioned for Robert Redford once and I was so starstruck I couldn't even speak. I had a mic wire at a screen test clipped to me and then I got kind of nervous and I paced in a circle and then took a step and tripped and fell on my face. You just have to forgive yourself and keep going on.
The hardest thing was learning to write. I was 13, and the only writing I had done was for Social Studies. It consisted of copying passages right out of the encyclopedia.