Shower Anxiety

My shower is in 2 weeks. 2 WEEKS! My original plan was to have my own shower, because I have severe anxiety and I am mildly obsessive compulsive. My Mother, being the selfish, dramatic, woman she is, threw a fit when I told her I was doing my shower myself, and insisted she takes care of it all. To understand why I caved despite my very real anxiety, you'd have to know this She-Devil personally. Fast forward 6 months, I am 32 weeks pregnant, high risk, and my shower is in two weeks. The ONLY thing this woman has planned is the date and time. That's IT. No cake has been ordered, no food has been decided on, no decorations, no theme, not ONE of MY friends have been invited, NONE of my Dad's family has been invited, nor has any of my Spouse's family. She hasn't asked anyone to co-host this shower, even though my sister has asked to help multiple times. She had invitations made that didn't even let people know I was having a girl, and she refused to put the two places we were registered, because it's "rude". Now, two weeks from my shower date, she is calling me, furious because I've not helped at all, and I won't help her make any decisions. Mind you, I've sent lists upon lists- people to invite, foods to serve, bakeries with wonderful cakes and cupcakes, theme ideas, etc. She refused them ALL. I am stressing, and I do not want a shower at all. I just want it to be over with at this point. This is my first child, my precious little girl. My Mother has ruined this entire experience for me, and I don't understand why.