If you wait until the right time to have a child you'll die childless, and I think film making is very much the same thing. You just have to take the plunge and just start shooting something even if it's bad.
It took me a long time to find out that I was born to be an actor. It was the last thing on my list, although my list was very small. I didn't know what to do. But kids weren't supposed to know what to do back then; we were all cute and we'd find out what we'd do later in life.

