my little brother is becoming the worst person ever.

okay my younger brother is 12 about to be 13, and so i guess it's not exactly strange for him to be acting up the way he does because he's a tween

but somehow he's becoming the worst person i've ever had the displeasure of being around. And i kind of blame myself for it

he's made weird comments about girls, insults the way i look and everything i do, and he says slurs that he definitely shouldn't say and clearly doesn't know the context behind them.

i try to correct him all the time which instead just leads to him saying them around me even more because he knows it makes me uncomfortable.

now i'm the type of person where if someone is doing the same things that he does, im cutting them off immediately. and ive done it before.

but i rely on him to help me with our younger sister so i cant just ignore him. and when i bring these things up to my mom she scolds him but thats about it.

i just dont know what else i can do about him and i know its not my place because im just his sister but i still feel responsible because this behavior can be changed and maybe im just not trying hard enough.

if anyone has any advice please let me know i dont want him to grow up to be a bad guy because nobody at home taught him that this behavior isn't okay.