I really wanna dye my hair blond?

but my mom wont let me. she says i should be happy with who i am and i am its just i think i would be more attractive blond. anyways she is crazy and she said that if i died my hair i would get aids. i honestly think its because my big sister is blond and my sister left my mom for a boy and i think my mom has abandonment issues and she wants to keep me as ugly as possible so i wont leave her like my sister did and i finaly got the nerve to ask her that and she was quite so i think she is thinking about it... but i would like somemore reasons she should let me! please help!