I think sometimes when you’re in a situation like this, it can be so hard to see an end to it and to truly believe it might stop. I think what DrMike says about finding a mentor at uni and having support is just so important. Just being aware of the teens in your own family, peer group and community is a good start.
Here in NZ there are several places you can go for support and the links are below.
GLBT Youth Services by area – LOADS of links and places for support and a friendly ear.