My Daughter Refuses To Go To Church!?

My 13 year old daughter refuses to go to church with the rest of the family. She says she is Atheist and she doesn't love God, because he isn't real. I took her to therapy, but she just got mad. Sometimes, I have to pull her out of the house because she has to go to church. There is no way that I'm letting her not go to church. For her birthday, I refused to get her what she wanted and instead I got her a Bible and forced her to go to church with us (it was Sunday.) She got so mad and sad I'd ruined her birthday. She also told me that I am brainwashing her and forcing her to do things she doesn't want to do. I think I decide what religion she should be until she is old enough to decide on her own. I don't want her to become a Satanist or something devilish like that! I would never forgive myself. Sometimes she becomes out of control and she screams and yells. I've recently found cut marks on her arms and wrists, and I found some music in her room that isn't Christian, which worries me. My husband and I only allow our children to listen to Christian music because that is the only music I know God likes. I am worried for her! Is this a stage? What should I do about her? Do you know any techniques to force her to go to church? Thank you! Sometimes, when she doesn't go to church with us I get so embarrassed. What do our neighbors think! Please help thank you!