Mother trying to make me believe in God?

I don't believe in him, he's never been there for me. I used to pray to him to make my life better or help me get through it but so far nothing. I'm a cutter, and a beater of my body. I'm also sort of gothic. My mother just can't get it that I do not and do not want to believe in God. It's my choice she can't respect that? So my question is how can I make her stop? Why is she doing this to me? To me if I start to believe in God again it's going to put more pressure on me to be good and do the right thing. So yeah not a good idea to me. And no I do not believe in the Devil either, so no calling me a devil worshiper.