I've realized I can't waste any moment being unhappy.

Don't get too excited when I am winning, and don't get too depressed when I am losing. Just keep it cool.

It's a completely different situation right now because last year it was the time that nobody expected anything from me anything -- I had nothing to lose, basically I was starting from zero. And now I'm back in Top 5. And for me it's a different stage.

I'm different than another person who wants to lay back and do nothing for rest of the life and talk nonsense on ESPN... I will not do that. I want to achieve something else.

It's too many questions about what I'm going to do, why I'm retiring, and this and that. So I answer the same question, I don't know, a thousand times.

I've felt it (shoulder soreness) since the first day I came, but more so now. Yesterday in the doubles I felt like I couldn't serve at all. I had a lot of pain. I decided to stop because without the serve it doesn't make any sense. It's better to stop and try to recover. If you play, you play 100 percent, not to suffer on the court...Hopefully I'll be ready for the Australian Open. I'll ask for a late start and try to recover. I can playing forehand, backhand, anything except serve.

I can improve it a little bit. But it's my head, it's the way I am. So at the end of the day, I will be who I am and I will win how much I can win.