A lot of people thought I wasn't doing anything because I was spending a lot of time socialising and going out, but I've always managed to get work actually done.

As soon as something becomes art I think you get over the fear

I'm 43. I'm not ready to sit down in a chair with my name on it yet.

In an artwork you're always looking for artistic decisions, so an ashtray is perfect. An ashtray has got life and death.

But I think it's more that when you're young, you're invincible, you're immortal - or at least you think you are. The possibilities are limitless, you're inventing the future. Then you get older and suddenly you have a history. It's fixed. You can't change anything. I find that a bit disturbing, to be honest.

But whenever I look at the question of how to live, the answer's always staring me in the face. I'm already doing it.

For me, art is always a kind of theater.