Yesterday my mom noticed (at a funeral) that I wasn't praying or participating in the mass. She confronted me about it, and I told her that no, I am not Catholic. Apparently it's sinking in and she's a bit hysterical... crying and screaming that she doesn't know me anymore.
What do I do? I don't know how to react/behave when she's doing this. It's like she wants me to feel like I'm doing something wrong, but it isn't working, so she's getting hysterical.
*edit*
I gave her a hug when she calmed down and told her I love her. That seemed to help, a little. Based on her previous behavior in situations where I've done something "wrong," she will (in the future) make barbs and slight passes at my beliefs. (Already she made one: insisting my love of science is causing my social anxiety disorder.) The advice given in the comments is really helpful. I plan on making the most of it.
If I had done that, it would have only enraged her. She needed to feel in control again.
Yeah, I think it's tempting when responding to accounts like yours to signal our fierce independence by saying "don't let her treat you like that! Tell her where to stick it!". Your course of action - letting her get her way some of the time and patiently helping her when she gets upset about your beliefs, while leaving her her own beliefs - is very likely to be the wise one, especially if you're financially dependent on her.
I hope you're able to be more independent soon!