hello jake, welcome to the boards.
I use to have bad acne to the chin area of my face when I was your age, it looked bad! And I went to a dermatoligist and he gave me several differnt things, diferin, some pills, and some other creams i dont remember the names of to apply at day and night...to be honest NONE of them did a thing for me! My acne didnt really clear up till I was almost 18 (still having some chin acne here or there)
And about that time I started getting the stuff on my back! I never had that problem, but i went to the dermo again he gave me some benzolproxide i think body wash that smelled horrible! And guess what that too didnt do anything for me. Infact I still get the boils/pimples on my back up until recently when I started going to a tanning bed. I know your a bit young and the idea of this probably isnt appealing but that has helped me (i know tanning beds are bad) But the other thing that has helped is using dial antibacterial body wash with a loofa. I use it after I wash my hair so it unclogs the pores and that seems to help.
AS for my face now I am using step 1 of a 3step cleaner from lloreal it has little scrubbie beads in it. It's about 6 or 7 a bottle at a drugstore and I use it everyday in the shower. And while visiting my dermotoligist again a few months back he gave me a new product called "KLARON" And My face has cleared up nicely! My chin acne is basically gone <knock on wood> and i put it all over my face once a day. It has done wonders for me and is the best product I have used personally.
goodluck and just keep your face clean. Most of these pills and creams will dry your face out, that is ment to happen.