Harry Potter but AU???

You know the drill, I died and got wishes, than I replaced the main character and lived happily ever after... or at least that's what it is supposed to be like, so why, in instead of reincarnating in my favorite book I am stuck in this AU where I am not sure what's gonna happen? Good thing I love fan-fictions? I don't own Harry Potter, if I did Harry would never have forgiven Ron in years four and seven and the cursed child would have never been written