Don't be worried to use the brakes a lot when just starting to
play this game. You need to figure out for yourself how you should
handle each turn at which speed. If you constantly go in real fast
and scrape the walls, you'll never find the proper way to handle
the turns. Go in slow and then come out fast and not the other way
around, fast in slow out. Try to do all your braking before the
turn and accelerate out all through the turn. Doesn't matter if you
brake too much, you can slowly adjust after you play more.