I am also a relatively new owner of a phantom 2 vision.
Crashes are going to happen no matter how careful you are.
Wind gusts that may push you into a object. ect ect
Just follow the beginners flight manual and you will be fine.
and read all the directions!
use common sense.
buy prop guards and extra props (the orig DJI plastic ones)
BTW I have yet to see any flight sims. for DJI or quads