My mom just tried to off herself

Again. And I don't know what to do.

She and her mother had a serious argument before she decided to slit her wrists. Everything is more serious than the first time, and I don't even know what to do. I'm just a kid, I want to enjoy life, not watch my family gradually crumble. And I can't even feel pity, only disgust, I feel like she's a hypocrite for it. Why is it that if I try to kill myself, then I'm the bad one, but if my mother does it, then she's the victim.

I just want to know what to do with all this shit.