You poor loves. Please don't self harm. This disease is not the worst thing that can happen to you, although it seems it right now.
At 13 I had a moustache that an adult male would be proud of, and even when I plucked my chin, you could see the growth underneath, so it was all dark.
BUT, there's always Wax, electrolosys.
As for weight, well, as long as your legs and arms work, and you can still run and jump and live well, it doesn't matter. New Look sell lovely lovely trendy clothes up to a size 24, so do Etam. Cute little denim skirts, and cute tee shirts. Evans has the younger range, but in my opinion New Look and Etam are cuter.
Being large wont stop you getting a boyfriend. You can achieve anything you want to now. Being a little larger than the average, and having to deal with facial hair every week is something even people without CAH have to deal with.
I always say, just as well I have CAH, or I'd be the most gorgeous woman in the world, and it would get to my head ;) lolololol
xxx