SLow down and learn the track. Learn to hit the jumps consistently and the corners. I started out way too fast and broke a lot of stuff. I hardly break anything now and although I am not up to full speed yet many at my track think I have a good shot at beating everyone at my first race because I am going at 80% and staying out there without crashing by being consistent and at a good pace. It's a heck of a lot more fun out there when you are in control
Be patient and work up the speed and everything will fall into place.