Gazlay, at your age you should not have to worry too much about supplementation as your body is producing enough testosterone to fuel a jet engine. You need to train hard (heavy on the compound movements), plan enough rest (you grow outside of the gym) and eat, a lot. This does not mean eat everything you see, Pity gave you a good link and Ross referred you to the nutrition forum so use that to your advantage.
Just my 2 cents, I would stay with the whey, creatine, add in the CM and BCAAs. Hope you make it man train hard.
Now go eat something
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