You'll regret it.
One guy told me once that he made an offer to Satan. He was a Christian. Something like, "Look, you just don't bother me and I won't bother you." Not long after, his life hit a massive disaster.
So much for any deals you try to make with evil. It's like trying to use lit matches to stir a bucket of gasoline.
It's far more fun to learn from someone else's mistakes, for certain. The mistakes you learn from that are other people's are not fatal to you, for the most part.