I can well understand you thinking “prayers not working”. I was in a simular situation a few years back, with OCD themes of a violent, sexual and blasphemous nature. I tried to pray my way through, but things got worse. I came to the conclusion that, maybe, prayers were a kind of compulsion. Eventually I stopped praying. I no longer go to church or believe in a personal God. After all, is it not down to God, if that kind of God exists, having created this highly unsatisfactory world that horrible things like OCD exist to plague people who, as you say, don’t deserve it? I now take a more free-thinking view of the world. A bit like a modern Quaker.
I think you may do well to consult with your GP. Hopefully he/she will be able to find some suitable therapy for you; CBT or something of that nature. All the best.
