Your friend's "argument" is bogus - too YOUNG for PH/anabolic steroids is a very real hurdle, and you're over it: you're IN the window *now* - your natural levels are beginning to tail off, though it will probably be months or years before you really start to notice unmistakably.
IMO you're much more likely to get real value out of such things now than you would have 10 years ago. Doesn't mean you don't have to be smart be carefull, do your research & pay attention, but you're good at that stuff by now, right??
