Weight Lifting and Insecurity.?

I lift weights a LOT. I can bench 175 max and am 14. I also have 14 inch biceps and 9 inch wrists at 140 pounds. People tell me all the time that im doing to much for my age. I dont have a girlfriend and have been rejected 3 times before. Its embarrasing. One time the girls had a bet on who would hug me and would do it for a bet! A girl came over and hugged me and everyone busted out laughing. So I figure that if no girl likes me I might as well like myself so i weight lift all the time. Ive torn my rotator cuff 2 times. I am always tired too. Please help.