If you have an idea that seems worth doing, don't wait to hire other people and get funding and all those things. Just start doing it, wait to see what happens, and then iterate on that.
What's great in theater is that you can sustain the arc of a character for a full three hours, whereas in film or TV, you have to create that arc in little pieces, and usually out of sequence.
The only way to be happy and be a more enjoyable person to be around is to embrace what you've got. Everyone has issues about their body, but I feel confident now. I'm healthy and happy.