Get ready to not hear what you want from others for multiple reasons:
1. You are WAY to young to be on anything. Your body has years of natural potential.
2. You are starting a cycle tomorrow and one of your concerns is what type of pimples you are going to get.
3. You haven't read any of the stickies or have educated yourself 24 hours before you are going to stick needles in your body.. which will probably be done incorrectly.
You are risking MAJOR issues with not only short term health, but long term health as well. I did a lot of dumb things when I was your age.. but I can honestly say, none of those dumb things I did effected me later in life. You might not be able to say the same.
You should not even be considering gear until your late twenties. Vets here will chime in, even with scientific reasons which I hope you take heed and use your head. Cheers.