When I was 12 years old, I was just horrible. My parents were ashamed to watch my matches. I would play on a court at the local club and they would watch from the balcony. They would scream, 'Be quiet' to me and I would scream back, 'Go and have a drink. Leave me alone.' Then we would drive home in a very quiet car. No one speaking to each other.

You can be stubborn and successful or you can give it up a bit and change things around. For me it's important to have a bit of both.

When you're good at something, make that everything

Clearly, when you win everything, it's fun. That doesn't necessarily mean you love the game more.

I definitely feel there's room for improvement.

I've done so many interviews over the years in so many different languages. Radios. Papers. Magazines. There's always another interview to do. It's quite something, I have to say.

I don't need to come back to Wimbledon every year because I can't live without it. I'd be totally cool without tennis.