i feel for you man. I'm 14 and my case is not quite as bad. If it's causing you severe emotional distress, then usually there is something you can do about it before 18. It depends on a lot of different things like when you first entered puberty. I've had it for about 5 years now and I started puberty young, at about 8. It looks to me like you started puberty a little bit older than that though, judging by the amount of underarm hair.
Out of ten, I would rate that a 9.
You should deffinitely go see a doctor and see what he/she has to say.