Rebeckss

Hello everyone. I have a friend who used to be a Christian. She was really depressed and believes that God has abandoned her. She then one day told me that she became a Luciferian, and that those demons helped her going through her depression and changed her life. I am really worried as I see her destroying her life by believing in those lies without even realizing. And she was talking about spiritual marriage with a demon but today I found out that she has done this spiritual marriage! She claims that this demon can even be exactly like a human and can physically and even sexually interact with her, keeping in mind that she is only 15!!! I keep praying for her but as time passes it seems like she is falling deeper and deeper into this darkness and I don't know what to do. I want to help her but she will not listen, she is blinded by those spirits. What should I do?