2 years ago, the horse I was leasing bolted, and I got tossed into a wall.
I broke my arm in 4 places, and the doctors told me that there would always be some residual paralysis because of how close the break was to nerves. They weren't sure I would be able to ride again. My recovery time was long. I broke my arm in July, and was in a BIG (it was 33lbs actually, as they were trying to rely on gravity to pull the break into place) cast until the beginning of December, where I finally got put into a brace. Fortunately though, I regained mobility of my arm.
In January, I decided to try riding again. Same horse. For me, it needed to be the same horse, because I needed to be able to face up to him. During my recovery, I put him into half training, so was hoping that would make a difference. Honestly? I was so scared. For 3 days, my stomach was in knots. I kept on hearing the doctors saying "paralysis" and wondering if it was worth possibly damaging myself again like that. Ultimately though, I decided that I wanted to ride again.
I threw up twice before I was able to get back on the horse. I won't tell you it was sweet and easy. It really wasn't. I was bloody scared and nervous. But I did it. I had my trainer put me on a lunge line, took a deep breath and told myself to just get it over with. So I did it. Rode for the first time in nearly 6 months. Walked/trotted/cantered (cantering was super scary for me.) Swung off my horse and promptly went to throw up again
It took me a few rides before I felt somewhat comfortable.
Honestly, I can't tell you what to do. Riding is a dangerous sport. You will get hurt. And sometimes, you get hurt badly. And fear can be overpowering if you let it. Ultimately, its going to come down to a) if you even WANT to ride again and b) if you can manage to conquer your fear enough to get back on. Because once you're on, you've overcome the biggest hurdle; yourself.