Can you help me?

I have positively no idea what else to do. I am nearly 18 years old and have suffered terrible acne for nearly 9 years. I have tried every over the counter product available and probably nearly every prescription available. From using contraceptive pills to different types of tetracyclines and minocycline aswell as oral medications and lotions absolutely NOTHING has worked and i am getting severly annoyed byit. Changes to my already healthy diet do not make a difference and i despair at the thought of living life like this for another 10 years. I was recently prescribed Roaccutane but as i have a nut allergy i was unable to take it. i am currently on another course of Minocin which does not seem to be working. Can you please help me find something that works? because i see no cure.