I crashed last July and ended up having my C1 & C2 fused. In the hospital for 8 days and two operations. got back on the bike for a mile or two in early November and was nervous around cars. FWIW there was no car involved in my crash. I just put it aside (I don't know how to describe it) with a positive attitude and went back to riding. Now doing 70 mi. a week and increasing. Also riding better than I have in 15 yrs. Wish I had an easy answer but for me it was just a matter of deciding to go forward without regard for the past.