AITA for no longer helping my mom?

For all of my life, I have always had a rocky relationship with my mom. She was never a good parent. Crutial part to the story: My mom, desperate for an out after taking care of my ailing grandma, subjected herself into dating apps where she met scammers. She thought they genuinely loved her. She neglected my brother, grandma, and I for these men. Eventually, she got out of that environment with my aid, but she blamed me for a long time for why she was “depressed” (she’s doesn’t believe depression today) and can’t find happiness, basically that I ruined her life.

Now as an adult living away from my family, I decided to visit this Christmas. Every day since I’ve been back, we’ve argued. Today, it was about her fiancé. The entire family, including extended relatives, think their marriage is doomed and that he isn’t right for her. She asked today why i disliked him so much, so I listed my reasons. We eventually got back on the topic of the scammers from before, and I explained how hurt I was back then by all the nasty things she said and blamed me for. Her only response was, “well, people say things like that all the time.” No apology, no thanks for helping her, etc.

She further elaborated saying that she was an adult and I should have LET her fall into that rabbit hole so she’d learn. This is the same lady who calls me for trivial things like how to attach a picture to an email, can’t cook and requests me to make her meals each day, and can’t even clean dishes properly. I was enraged to say the least. I spent the first 18 years of my life being her assistant and now she told me she never appreciated anything I ever did and I should let her be. So, I told her not to ask me for help anymore, she wants to be an adult so I’ll let her, and stormed off. She’s upset that I still hold a grudge and wants me to make dinner tonight, which I refused. AITA?