You do not need any suppliments. Your head is fucked up. It is all in your mind, the more you focus on it the bigger the problem will get. Go be a normal teen, hang out with your buddies, play sports and video games, get drunk, ect. Relax and everything will work itself out. Trust me I had the same problem when I was your age. I am 29 and I bang my wife like a rock star now.