So sorry you didn't find a more supportive environment when you came out. We all need support, especially when we are dealing with a big issue like this. What about the school counselor? A neighbor you feel you can trust? A pastor at a church that is more open-minded? On-line support such as GLBT Alliance? A teacher you feel might be supportive?

I think coming out and getting honest about who we are is essential to happiness. You just need someone to be there for you and help you through.

Here is a link to a TED talk about coming out that I found inspiring. Maybe you will find something in it helpful.