What kind of racket should I buy?

Hi I'm highschool student who wants to buy a new racket. I've been using head Ti.S1 pro for little over a year and it was good when I was starting to play tennis but now it's kind of lacking power(probably the string wearing out). I like playing at the baseline rather than playing at the net. I want to put more topspin and more control. Also, I was bit uncomfortable with lenght of the grip. Plz help me find my Racket >.<

I too play high school tennis, and for a racquet that has more topspin and control for a base line player, i'd recomment the Prince o3 Speedport tour, the Prince o3 tour, the wilson Ksix-one 95, the wilson nsix-one 95, or perhaps the wilson k-blade tour. in the end, it all depends on the brand you prefer, for all have a top line of racquets designed for the competetive player. For example, babolat has the puredrive and the aeropro, both similar to the racquets above. I myself, prefer the Prince o3 White because of its control and topspin, with a little extra power. You should definitely try the Prince o3 White and tell me how it goes, I fell in love with it