Demonic HEART

First of all, don't be here thinking this is the account of a human. I'm going to tell you my story. I was a demon in hell. The only mortal demon. All of the other demons and the devil were always trying to find a way to send me out of hell. Demons shouldn't be mortal. One day, I challenged the devil to a fight. I was about to land the final blast and kill him and send him to the prison in heaven when I was sent to Earth, reborn as a stupid human. I have since gained some of my memories. That and the fact that there are different hells is all I can remember. The only other hells I remember though are drowning hell which is water instead of fire, and crushing hell where you get crushed by the pressure of it. My goal is to return to hell to finally see if I succeeded in killing the devil and if I am the new ruler of hell. By the way, the devil I killed was in charge of the two hells mentioned and the one with fire.