I think at the beginning of a project, you decide if you're in love with the idea and what it's about, or what you think it's about at that time at least. Then you commit to it, and once you've commit to it no matter what, no matter how many self doubts you have, you're in it. The ship's sailed, you
It's funny, the hardest thing to do is to make something look like it's fast, loose and improvised, and get somebody to laugh.