Racing is a tough business, not only you need to be prepared physically, but you should also be prepared for it mentally. Hours of racing can take a toll on your mind and that is something not all of us can handle. However, mental toughness is something that is common to racers everywhere.
Drive your car as fast as you can till you reach the finish line. Try to take at least the third spot to unlock new tracks. You'll also unlock new and faster cars as you unlock more tracks. Don't forget to grab some turbo on the road. Use the turbo wisely, so you would ahve plenty of it to use when you needed it the most.