Have you considered seeing a therapist? If you are in school, you can try the counseling services and see if they help. I have also had depression for many years (sorry, I haven't experienced anything associated with gender identity. There might be a forum here for it though...) and my last t said that building connections with other people help stabilize the chemical imbalance in your brain. Although you may not feel comfortable doing it, gradually associating yourself with people you accept and respect in your life can help. If not, you could also keep posting here or go on into the chat rooms. There are lots of friendly people here

Best of luck~