Family conflict over religion?

Ok, I was relating with the whole keeping atheism a secret until "she thinks I'm a devil worshipper. Then she said there's no point in living if I don't believe in God and grabbed the wheel and made my car do a 360 turn in the street and my car ended up on the sidewalk. Then she got out the car and banged my in my face." It seems like your sister has some issues... I mean she could have killed you! And she hit you in the face. I think you should let her calm down a bit. But you should tell someone that she might be a danger to herself since she said there was no point in living.