Do the threrapy for your legs, get strong. You deserve this. You need to think of you right now and what you are going to do to continue living. I am sorry about
your relationship. And I am sorry that you feel you hate the male gender. There are many compassionate men out there, you just have to meet some. You could even be friends with guys. They are great friends at times.
I guess your girlfriend is just changing and moving on with her life, you need to do that too. But it sounds like you need to work on you. You are a special person, worthy of love and acceptance. But please get better, go to therapy. It is hard, it is a long road, but you are worth it. It will occupy your time and your mind. You are right, entertaining negative thoughts puts us in a bad place.
Keep trying to get better, and remember that we are here for you.
Hugs, Karen