I'm 13 and I've wanted to dye my hair since I was 11. The only problem is I have dark brown hair and I can't dye it the color I want with dark hair. My mom let my sister start bleaching her hair when she was 12 ( she's 25 now) but she feels like I'm going to screw it up. I've asked my sister for tips and my mom still doesn't like the idea. She says I can dye my hair but I have to pay for everything I need. She took me to the store to buy everything and there I grabbed some bleach and she told me to put it back. Any advice on how to convince her to let me bleach it?