I went through a particularly nasty time with my mother and sister back in Dec/Jan when they finally realized that I no longer wanted to be a JW. The things that came out of their mouths was putrid.
I made it clear to them that the decision to cut me out of their lives was theirs, not mine. The only thing that changed in my life was that I was never going back to the meetings etc. They were still my mother and sister, but if they wanted to change the relationship it was their decision. My door was always open.
I felt as if a huge burden had been lifted from my life. I expected to feel hurt/pain etc, but it was relief.
It didn't take them long to come around and apologize for what they said/did and ask to be a part of my life again. The relationship is not the same as it was before, but we do have one now. There are boundaries, we do not talk about religion at all. She doesn't talk about the meetings, never mentioned the new release at the assembly or even offer me one.
It can happen that your mother will come around.
BB