Am I past repair? Please answer!?

[Horse Addict]

You need to tell your mother that if she keeps pushing you then you are going to quit riding all together. I know she's only trying to help you because she thinks you can do these things but you just aren't mentally ready for them.
It's time to take baby steps. Get on the most bomb-proof, push button pony you can find. Gradually work yourself up until you are back to your old self. What that race horse did to you wasn't his nor your fault. It was in his blood to bolt and he was just frustrated that he couldn't.

Everybody falls, but few choose to get back up.