Hmmm....there's a lot going on in this thread, especially with the "women will have acne their whole lives" deal. I'll throw in my two cents.
I am a woman. And, yes, I have struggled with acne since puberty. HOWEVER, throughout my many years of dealing with it and talking to my friends and family, I've personally seen many women who had acne and successfully suvived it for the long term or even permanently.
Unfortunately, there may not ever be a one cure-all treatment plan because the fact is that every person is different and things that work for me may not work for other people and vice versa.
One thing that I want to make clear is that you HAVE to be positive, or it is possible that your acne will always be a problem. I am a true believer in trying new treatments while also using the power of your unconsious mind through meditation and positive affirmations. Your mind is stronger than you think and if you give up hope, then I can almost assure you that your treatments won't work because your body has already given up knowing that your mind has too.
For a long time, I did give up hope and just recently I have gotten myself back on the right track emotionally and mentally. I think I've found what's right for my body and, knowing this, my acne is clearing up tremendously. We can't always predict the best treatment, but we absolutely have control over our mind to help our bodies react in the most positive way that it can.
Good luck and please don't give up! We're all with ya!