First of all, take a deep breath. Everything is going to be alright.
Many gay people, and even gay Christians have gone before you. We all know it is tough, and only you really know how to deal with your environment. The primary element in all of this is your safety and well-being.
Your first goal is to get an education. That is vital. Without a good education you cannot take control of your own life and destiny. Once you graduate from high school things will be different. You can then begin a life under your own control. But until then only you can determine what needs to be accomplished in the short term. It is not a good idea to do anything that will cause you to be unsafe. It is also not a very good idea to do anything that could cause you to become homeless.
The good news is that in today's world you can still get the help, encouragement and fellowship you need. The fact that you have accessed this information is proof that you can be in contact with other Christians who happen to be gay. So don't feel discouraged or alone. There are thousands of people just like you that can help. Not only that, you can help others as well.
Check out the Resources page for assistance in contacting some organizations that may be able to provide the support and assistance you need. Social networking sites are also available.