My mom made it 8 days without drinking. She's drunk now. I don't have the will to continue being sober because of that. I know in my head that that's irrational but if she triggers me in the future (Which I'm sure she will), this is why I'm saying that.

She only cares about looking good for modelling so she exercises and starves herself when not drinking.

It's because she has histrionic personality disorder.

She's at her friends house. My sister told her friends that she's a bad influence and they are. My moms friend probably pressured my her into getting drunk.