you should not be planning on not making it...you should be able to envision yourself making the trick and landing it before you attempt it at all...then you have to go for it 100%(or as they say on judge judy:your honor i 110% or 1000% sure i am not the baby daddy
) anyway don't plan to fail, give it your all and when you do crash your friends will love it...now if you know you're gonna crash...get a barefoot suit, a neck brace, a helmet and a cup(crashsuit) and go for it.