You're not allowed to mess up in theater, and if you do, it is going to be embarrassing. But in film, if you make a mistake you just do it over again. You can just do another take.
For me, songwriting is something like breathing: I just do it. But that doesn't mean you're fantastic.
With improvisation, I just do it. It might be a total failure but then you just throw the dice again.
I'm this overachiever type, I'll just work and work and I'll just do it over and over and over again.
You're not allowed to mess up in theater, and if you do, it is going to be embarrassing. But in film, if you make a mistake you just do it over again. You can just do another take.