In a nutshell... I've tried
From what ti seems you haven't tried too many products. Sure, the products you already tried didn't work, but there's a HUGE variety that you could try until you find the one that fits your skin. And like the above person suggested above, antibiotics work wonders if you take them for a while. Antibiotics could possibly get rid of acne that have been there for ages and the creams/gels/etc. whatever your using can get rid of the newly made acne.
Don't give up just quite yet, keep trying. What works for one person, may not work for another!
Clean and clear
And a few random kits/brands from drug stores.
It may not be everything but I've damn tried a lot. The dermatologist one is the name I can't remember.
And this list isn't even ALL, that I've tried
Oh and some oral supplements