The acting school I'm attending has really helped my confidence and my ability to simply not give a shit. In the field I'm entering confidence is VITAL and there is just no room for any doubt or self-consciousness. Plus, it is totally irrational to be insecure, even if you are ugly, stupid and in need of a sense of humour: such people make it all the time if they just believe. Sounds like a corny after-school special, but it's true. And any talk of being realistic is bullshit--any limitation you acknowledge will remain in effect.