Sally, if I recall, you havent been happy with your sponsor for some time. It's up to you to take some action here, even though I know it's difficult.
Being honest about how you feel is key. She's been a big help up to this point but at this point you're just getting what you need. If she asks for specifics, give them to her. Tell her that you're having problems relating to some of what she says since she is religious and you are not.
It's not about judging her for being religious, which I don't think you're doing here.
If she takes it personally (and she may) that's on her.