So sorry to hear Judy. Crashing sucks, and it is a real bummer to hear that you crashed with no fault of your own. Hope you heal quickly and fully. And add me as another person that will feel it a great loss to the sport if you choose not to continue.
For others that still are on the fence of feeling violent over a possible situation like this.... Unfortunately a small mistake or a miscalculation can lead to this same outcome. Just think about that last time you missed your apex by a foot... It would be easy for someone else to be there and end up in the weeds. You didn't mean to miss the apex, but it happened and I think most of the time that is how these situations start. So be careful with your riding, consider the possibility of another rider being caught out if you make the wrong choice. And if something happens to you, you have every right to be upset, but for everyone's sake, hold the violence.... And if you feel that it wasn't just a mistake on the other persons behalf, go see the director for the day... They WILL handle it, you can put money on that.
Be safe, and have fun