If a crash if about to happen and no hope of saving, make sure either your throttle is all the way down or you switch "throttle hold" before you hit the ground. That will minimize damage to lots of stuff.

And, as with planes, trying new things at 2 or 3 mistakes high also applies to helis ... after you learn to hover. Oh, and a computer simulator is a good idea for learning to hover and also for trying new maneuvers.

Lastly, your heli is fairly large and can do some damage to people or things (car, house, etc), so be safe. Take off from the ground at least 15 feet from you, and way more than that from other people. Think of it as an unprotected lawnmower, and you should be ok.

Have Fun!