Something you need to really think about OP. You said this stud reared up and struck you in the back with both his front feet... You said he ran over your friend.
What if the next time you walk out to this stud in the round corral, or his stall and he rears and strikes at you and hits you in the face or head? Or he runs over you next time. Or an unsuspecting friend? Or your parents?
Do you really want to risk someone being killed? This horse needs to go with someone who really KNOWS what they are doing. Find one and let this horse have a chance at a good life, instead of a bullat to the brain because he decides to savage you or someone else and your dad shoots him.
There is nothing wrong with admitting that you are in over your head. There is alot wrong when you won't admit it......