I think it's very hard for coaches to work with me. They'll no doubt have a good CV afterwards, but at the same time they're under a lot of pressure.

My aim over the next few months is that I have a lot of points to defend in Miami and Hamburg, after that I can set my sights on No. 1.

You live during the match, and you have strong emotions, but you don't want to get too overexcited. My body's totally flat now. I cannot move anymore. I'm totally exhausted, just because of the tension out there.

But so far I have the feeling that the chances are there to repeat last year's season.

Oh, my God, I don't think any player can look forward to or expect to a career of so many Grand Slam wins or title wins or being so long at the top of the game.

Before, I guess, mum and dad were everything, but now, in my case, I had two new girls and all of a sudden they're completely dependent on you and there's a third generation. It's a funny shift all of a sudden. You have the babies, you have yourself and then you have your parents.

The more I lose, the more they believe they can beat me. But believing is not enough, you still have to beat me.