Wow! Glad you survivied! Horses can be very dangerous. Tons of fun, and hard to live without, but dangerous still.
I don't know if you would be interested in this, but I have been told this is a great program. It's a rider recovery program, here is a link: http://www.riderrecovery.com/
For getting back into the saddle, I would go slow and find a nice quiet horse for a while. Then, work up to the more spirited ones.
About 1 1/2 years ago Christy threw me, and I was hurt, no where near as bad as you, but I was afraid to ride for a while. I just spent a lot of time with her. Not riding, just hanging out and grooming, then lunging and starting her training all over. As I didn't do something right the first time. Heck of a way to find out a horse is deathly afraid of dogs!
I still get the nervous stomach sometimes when I think about riding. And Christy and I have had several setbacks. There are days when I know I should go get the saddle on her and ride, but I just can't do it. So, I get the brushes out, and the halter and rope, and we just do fun stuff. After all, she is my life, and she is just fine without being ridden. There is nothing that says I HAVE to ride. I do saddle her occasionally and do some riding, but not recently. It's too hot right now!
Today was 108 deg. F.
Christy is for me to enjoy, whether I ride, or just brush her, or lunge her or whatever. The more time I spend with her, the less fear I have of riding her. 8)