My 20s was a sea of worry. I worried about benefit forms, about being thrown out of my flat. I never went on holiday because I thought: 'What if an audition comes up?' I was a nervous wreck.

You’re worried about what-ifs. Well, what if you stopped worrying?

He's worried about people's lives, but he'll wreck you at 190.

David Holdaway was my stage name. I was an actor for about eight years in the '90s. I had to change my name because there was another David Nicholls, and I thought if I changed it to my mother's name, she'd be touched.

I don't know if we were nervous, but we came out flat.

I worry sometimes that I'm a bit moralistic; always writing about men who are learning to grow up, not be so self-absorbed, selfish or badly behaved. I wonder if that's dull and liberal and wimpy? I should probably write something that celebrates wickedness.