Dude I wrestled 189's my senior year in highschool, and was probably in the best shape of my life. I also was very much into bodybuilding at the time, and lifted weights even after intense wrestling practices. I had decent size for my weight, and was more cut then I have ever been. I never had more fun then I did that year of wrestling. It is an amazing sport, and something I would do all over again if I had the chance. I know this isnt what you want to hear, but GO FOR IT! You have so much time to focus on bodybuilding man, you are 15!!!! Enjoy the sport, get in awesome shape and then continue bodybuilding when the season is over. Good luck.