religious OCD [trigger warning: thoughts of hell]

Me and my fiancée have been both suffering from severe OCD focused on religion (we were raised Roman Catholics, but I am considering leaving the religion). I also have a history of religion-based psychotic episodes, such as recently when I went to church, got the idea that if the sermon will condemn homosexuality, then I will need to break up with her, and then the reading was about Sodomah. My OCD has been terrible recently. It’s been showing me that I am harming her and that we will go to hell. Does someone here have a similar experience? How did you guys get over that?