I know where you are coming from, I had two accidents within a month that required emergency room trips. The first I went over the bars and landed on my face, 20 stitches required, don't know what locked up my wheel.
The second another rider hit me headon on the sidewalk, fractured right shoulder, still recovering from that one. Doctor says no riding until August 22nd.
I am only considering changing where I ride, I won't give it up. I will re-evaluate my methods, life is a risk.