My only thought is......Thats why they call it an accident. You didnt mean to have the accident or hurt the motorcycle rider. Even if the accident is your fault.....it is just that.....an accident.
I was in a really bad accident when i was 16 and the crash hurt my girlfriend pretty bad. I still have some guilt over it, but i didnt mean to hurt her. It was an accident..............
Just remember that you didnt mean for it to hppen and it was not intentional.
Hope all involved get to feeling better soon!!