Gina,
Beth is right. You are not a mental case. A few (!) years ago, I met Jesus Christ's older brother (he told me so himself and meant it). THAT was a gentleman who had a few ... what's the word?... issues to work out!

With your injury, you will have a few limitations. Some people would let their accident be an excuse for everything that is going wrong in their life.
You have taken a different and healthier approach. You are bound and determined to be the person you are. Going forth with living full time is proof of this and I applaud you for it!

Do you think your neurpsychologist is accepting of transgendered individuals? Given what you have written, it sounds like he is not. Have you talked with a TG-friendly therapist about these reults? She might put a different spin on what is being said.
Go forth and excel!
Chaunte