Breath. You are not alone and you are not the first going though this. Look for professional services in your area, maybe you have a school counselor or someone at school whom you trust that can contact them for you? you have friends or someone supportive of you right now? that's the first step. You are taking a path in life, and there will be many moments of difficulties, but if this is what you truly want, then you will also feel accomplished. Life is a journey with ups and down, and we can learn and growth from every experience. Sadly, kids are immature and mean, and can't understand differences, especially those who are more obvious (because at the end of the day, we all are different from each other), but don;t worry about them, because if they keep up with that attitude, they will also have hard lessons in life, you just focus on yourself. On what you want, and find out what makes you happy. You will meet many people in your journey, some of them will leave, and some will sty, don't worry about those who leave, that's also for the best. Worry about those who are there for you, and support you.

I think you need to find a group specifically for what you're going through. You'll get much more out of that in the long run.
But when things are bad try and remember that it will pass. Everything has a start, middle and end and you will come out stronger on the other side