I'm not a psychologist but I don't think your horny thoughts are attached to your mental disorders. You're just a sexual guy but your mental disorders hold you back from getting what you want in that regard.

I'm similar, for example for as long as long as I can remember I have been one of the horniest people. Even when I was a little boy I was constantly having dirty thoughts about virtually every semi-attractive female I came across. The key is to find someway to express your sexuality in a non sexual way. Finding a way to channel that energy and put it towards something useful is incredibly helpful. My personal sexual release valves are running, surfing, and playing guitar.

If you find a non-sexual hobby/job that you can divert most of that sexual energy into it will not only help you grow tremendously as a person, it can also be very attractive to women and help you loose your V-card.