"I guess I was kind of sick being all the time around 30 or 40," Tipsarevic said. "I am not getting any younger. I'm not old but I'm not young. I see guys from my generation like (Robin) Soderling or (Gilles) Simon had their, if I can say, dreams come true, winning tournaments, being top 10. I feel that I have the quality. It's just the thing is that my head was not there in the previous years."