When you're younger, it's hard because you're finding your identity, and then for 12 hours out of the day, you have to be a different person. So that's a tricky phase - as far as figuring who you are out and then figuring out the people that you're working with.
I think the thing about film is, as it gets proved by a lot of young filmmakers now, that the medium will just go on reinventing itself, and so you just hope to be a part of that and not a part of some kind of endless regurgitation or 'Here I am doing what you know I do' kind of thing.