I don't want to take my mother's MLM pills.
Why don't you want to take them?
I don't think they do anything and they're a waste of money.
It's fine to tell your mother that you don't want to take pills. You're allowed to stand up for yourself against your parent if you think they're making you do something that isn't good for you.
Fuck that. She's going to give me hell and tell me how I'm a piece of shit and that she wishes I was never born.
Your mother's behavior is inappropriate and deeply disturbing. Is this kind of behavior normal for her? She needs to make an appointment with her doctor to get to the bottom of her issues.