I think your a little bit too young. Your body is still producing really good testosterone right now. I would keep eating, training hard, for a few more years. Im 31 right now, I started working out when I was about 17..when I turned 21, my friends all thought I was juicing too. That was such a good feeling to have, because I knew I wasnt. I didnt try till about 25. I felt I got all the gains I could naturally, so I just wanted a little boost. By all means Im not recommending you do juice, if your going to, I would wait a few more years. There is no hurry...good luck!