While we wait for someone with OCD to respond, I'm thinking you do need to talk to someone. I gather your mom is from a very conservative religion. DO you go to that church? Not all church folks these days would agree with what she says.

I can tell that you are struggling, and to me, that means that you need to tell a professional about your symptoms and get help from him/her. Is there any Christian counseling service near where you live? You don't say how old you are, but if you are at least 18, you don't need a parent's permission. If money is a problem, then a clinic who takes what people can afford might be an option.

Meanwhile, you might want to join one of the religious social groups here, so you can talk to the members. We are all Christians, but we vary in our denominations. Somebody there might have a history of OCD.