Well...Unfortunately if you are living in your mother's house, and she is feeding and clothing you, You have to live by her rules. Maybe you should try having an adult discussion about a haircut you can compromise on.
my mom is trying to cut my hair,for no reason. my hair is atlease 7 inches,and i have a afro,and she even said that she would braid it,but then says that "young men should have a hair cut",what should i do?