Looks like you got great advice. No one is going to advise you because of your age. Remember, in order to be old and wise, we first must be young and dumb. I did dumb shit at your age. However, knowing what I know now, I would have waited years before touching gear. You need to get that diet in check and get on a good training routine. Besides, cycling at 25% body fat is pretty dumb. I would get to 15% at the very least even if you were to cycle. Theoretically you should be full of testosterone at your age so embrace it and enjoy the ride. You can do a lot of great things naturally for the next few years. My suggestion would be to check out 3J in the diet forum and see his client results and see how much a good diet can do for you. Good luck.