I dont want to be her friend but she doesnt realize

My friend (barely) pisses me off. She gets under my skin and makes me so mad. Shes not funny, shes annoying, she is always self-deprecating and i get it but tone it down idgaf about your insecurities and i dont want to hear it. She cant be trusted, she tells her mom everything which i understand and i do the same but i have a limit to what i tell my mom and she doesnt and her mom will tell my mom so im not telling this friend anything. Shes rude, she doesnt know how the world works because her family gets along concerningly well and its not realistic and she is privileged beyond anyone else in our friend group, even me (a middle class white girl just to clarify). She also makes me insecure. She'll say things like "you look so pretty but you have good skin so you always look pretty. Unlike me, i have bad acne". STFU. It sounds like if i have a breakout im immediately gonna be ugly. She gives off such bad energy and im sick of her. The worst part is that she doesn't realize that i dont like her she still thinks we're the best of friends and it makes me feel like im in the wrong, im the problem and like im a bad friend and bad person.