Hey, I know the feeling, I really really do. I'm in a somewhat similar position (Though I'm 28 and stuck at my mother's right now). I know how you feel, and it really really does suck. But you're also still so young and you got a lot ahead of you to deal with, not just your transition. You got all kinds of fun experiences waiting for you. Some days suck worse than others but you gotta enjoy what you can while you can. Trust me, you probably don't believe me now, but two years are going to fly by and you'll wonder where it all went.
Once that happens you got a whole world ahead of you, HRT included. You can do it, you just gotta hang in there. The others are right, find something(s) to distract yourself with. Perhaps a hobby you have, or maybe you can find a new hobby you'll enjoy. Whatever that might be. You can do it, and in the end you'll be so much stronger for it. You can do it. Just keep trucking.