YOu will probably see some effects from the ATD. It is an aromatise inhibitor and no matter what anyone says your test levels at your age are not too high that they can't be raised a little. The PROBLEM though at your age, and this is why i wouldn't advise you to use this product yet, is that an increase in testosterone levels above those that you normally produce can have negatives effects while you are still somewhat developing. Testosterone while present during puberty also causes your epiphysial "growth" plates to fuse faster. YOu do not even know yet exactly when you will stop growing, unless you have had a consultation by your physician and x-rays. Never good either to mess with your endocrine system (hormones) while you are on the latter end of puberty. High school doesn't mean crap anyways. No one will remember in 5,10, 15 years but if you mess up your body you'll always have to live with that.
Just my .02