I'm going to tell my mother I don't love her
Why would you ever tell your mom you don't love her?
She's trying to tell me that I'm not mature and never will be.
It's petty to tell your mother you don't love her because of that. She is trying to get you to be mature and you're being immature by resorting to the most extreme. You are proving her right.
It's not like she does anything around here except spend my dad's money.
It's mean to tell a parent you don't love them just because you're mad. It you two could take some time away from each other, maybe you could communicate better instead of just insulting each other.