I feel insane

My mother is being so mean and nasty towards me, I believe because summer vacation is about to end so she's nearly done using me as an unpaid babysitter.

She's now denying stuff she's done including stuff she previously admitted to, and insulting the way I've parented her kids both current-day and years ago when I was a teen. (My siblings don't actually have problems with me.)

Idk what kind of mental gymnastics it takes for her to act like she's a better parent when she's a neglectful drunk, but ok. Congrats to her, because she succeeded in upsetting me, I guess... Threatening to kick me out again too as if she doesn't expect me to stay and look after her kids during her next workday? Contradictory, stress-inducing woman. >_>