I hope so. God, I've practiced so much that I-you don't want to be worse five years later. I feel I have a great game today. I know how hard it is to pull off those great shots, and I know how easy it is to miss, so I'm more aware of these things. But I'm so happy I'm at the age I am right now because I had such a great run and I know there's still more possible.

To handle that stardom, the red carpets, the photo shoots, people all of a sudden recognizing you and following you in everyday life, it's a bit weird. It's strange, and it can have funny effects on you in terms of do you like it or don't you like it. Some people run away from it, some people embrace it; I found a good middle ground.

I definitely feel there's room for improvement.

No, I'm not (disappointed). There's no reason to be because I'm on an incredible run. You always expect a loss once in a while. So when it happens, why be disappointed if I win over 90% of my matches.

The serve, I was too young and too small and... not enough powerful to have a good serve when I was young, so my forehand was always my signature shot. So I used to always run around my backhand, you know, use my forehand as much as I could, and so that's why I think it's my strength also today, you know.