How can i convince my mom to let me dye my hair?

so I want to dye my hair black and my mom wont let me and I have been BEGGING her...but I want convincing arguments and I dont want any of that crap where you say well if you dont have any convincing battles then maybe you should think why you...

really want it because I need this hair!!!

well I would just like to say, I dyed my hair black and it was the biggest mistake I ever made, no othr hair dye will dye over black. My hair was light brown an I wanted 2 dye it black so I did, and now I regret it im leavin it 2 grow out,

Why do you want black hair so mad?
If you are serious about this then you should sit down and have a mature talk with her, explaining why it's important to you. Or even ask if you can just get semi-permanent dye first to see if you like it and if you don't then it fades really fast. And if you do like it then dye it with permanent stuff.

OK thank you for all your help my mom said that once I clean my rooms (I have two lol) I can dye it black So thanks!!!
:-]