If the tables turn, let her overhear the words "do not resuscitate". Or refuse to buy her gifts for her birthday/Mother's Day/Christmas.

Um are you a minor? Cause that sounds like she just left. How did you get home?

Leave some pamphlets at her home for some shitty nursing homes. If she asks, say you are just researching where to drop the bitch of a mother at when she gets old, as she burns her bridges and you don’t want to be stuck caring for her ass. Especially since she’s a bitch for no reason. Make sure these homes have multiple violations. Bonus if shut down before, or were in news for elder abuse with charges filed.

She's jumping to conclusions like hurdles champion on the olympics.

Woulda popped that bitch like a zit

I'm sorry for anyone who has to deal with this treatment. Please don't let this lower your self esteem. You are pretty much better off without someone so vile.