I was raised believing that my suffering could atone for sin and save souls from hell. So I inflicted suffering on myself
I was foolish for believing such nonsense! I don't wish hell on Christians who are preaching this foolishness because I was one of them, but they also shouldn't be without consequence for it either.
They should wake up, be enlightened, and recognize the damage their toxic Dogmas are doing to people. They should suffer some consequence for the psychological damage they do and the lives they ruin. I've known monks that live lives of self-denial and penance, chronically inflicting suffering on themselves thinking it is saving souls, atoning for sin, and appeasing the angry God.
Their lives are ruined!