I'm sorry to hear you've had a difficult year.
My mom then started insisting that my aunt refuses to pay for herself and so I have to stay with her so she can get a cheaper rate or else she'll get mad. My attitude is "let her, that's not my problem" and of course when I suggest that, I'm told that *I* need to be more accommodating
You're right, it's not your responsibility to solve that problem. If your aunt wants to come, she'll find a way. Unless your aunt asks you directly for help, I think you have the right attitude (and even if she asks you still can say no).
Then like... .she went on about how she has to do everything and no one helps her. The list of things she "has to" do include a ton of things I could easily do myself like calling a restaurant to see if they can accommodate my dietary needs.
My mom did the same when her parents died. She was doing everything herself. No one was making the difficult decisions. Then one of my uncles wanted to help pay for the funeral and suddenly she was complaining he was just doing it to "show off." Would it be easier just to let her do everything and complain? She's going to complain no matter what, so is it worth it to you to get yourself in the middle of that?
I'm tired of hearing my mother paint herself out to be the hero and the victim in all this when my grandmother is the one who died.
This is just unfortunately how their minds work. That said, I completely understand.
she's always offering money and even just buying things without me asking her to. "Put it on the card." Then if I ever get upset or feel unloved by her she'll bring up the money.
My mom does the same. I also went to an expensive school paid by my parents, and although she doesn't just buy stuff, she has convinced us to take things we don't really want and we also still owe money on a loan we should have never accepted from them, and that sort of stuff really gets hung over your head.
I feel guilty leaving people who *act* like they care
Have you read up on FOG (Fear Obligation Guilt) yet? If not you may find it helpful.
https://bpdfamily.com/content/emotional-blackmail-fear-obligation-and-guilt-fogMy dad is into that FMSF stuff and so he can just whip that out any time you bring up abuse... .it must be false memory syndrome or whatever the hell.
I'm not familiar with this, but I'm going to infer he tells you you're just making stuff up? Trust yourself. You know the truth of your life.
As far as your grandma goes, were you close enough you want to attend her funeral? If so, perhaps you can go and keep a low profile. Avoid your parent, spend time with the family you enjoy, make excuses to cut conversations short if you get caught in a situation you don't want to be in. If you weren't close, then don't go. It's not worth the stress over someone that wasn't a big part of your life.
Best of luck. We're here for you.