HI Andrew,
Wow I'm hurting for the way you are feeling.....you are so young to be so sad.
Anyway I know some of your replies were about how derms don't know a thing about our problem, but I think your derm is not professional enough to tell you that he cannot help you and it's up to YOU to seek another opinion. He(she) is not the only game in town, and they vary so differently in their approachs to things. I'm sorry, but I have faith, and I think that all of us have the potential of being under control(again, not cured, just controlled), you included.
Bull that this person has lost faith! Seek another opinion! And the person who suggested Proactiv may have something there......I used it for 4 years with much success. Sadly it stopped working, but it was beautiful while it lasted.
Hope you find the the answers to point you in the right direction on the road to clear skin.

D~