There's a confidence that comes from youth and not knowing better. But there comes a point, as an actor, when you do know better, and that is when the fear starts.
My whole mood or sense can change by virtue of the music that I'm listening to. It really does affect me on a visceral and emotional level.
When I was younger, my whole sense of self-worth was based on whether or not I was working, which was awful. And I had a baby at 20 years old, so it wasn't just about me. At around the age of 30 there was a stretch where I wasn't working - certainly not on anything I liked, anyway - and I started to do other things.
When we shoot 24, there are so many things I have to worry about, from the script to technical things to my performance, that I don't have a second to be bored or take anything for granted. We produce 24 hours of film a season, which is like making 12 movies.