Keep your head up
As a moderate cyclist who didn't get a car till I was 17, I had to learn that cars do not care about you. I had to be aware of them, learn their mannerisms, and predict their behavior based on previous experiences. Like how a driver WILL NOT look both ways before exiting a parking lot making a right turn. If you were coming from the opposite direction, 99% of the time they do not even know you are there.
And always, always remember. Right or wrong, their fault or your fault, a car will always win. Keep your head up when you ride.