So, bit of an update: had my first appointment with a new therapist today... to help me deal with my anxiety and other issues. Not even 10 minutes in, I told her about... the whole gender thing, all of that. Just went right ahead and did it! That's the first time I've managed to tell someone in-person. I just about wrecked myself with nervousness while doing so, but I did it anyway! Went well!
I hope at least one of these helps and I hope you're able to make it through this! Sending good bunny vibes!