How to convince my mom to go natural?

My mom said i go natural when i graduate, but i just dont want to wait! She thinks ill look like a run away slave or a wild child. She thinks since no one in our family got good hair, mine will be nappy and terrible. But im tired of relaxers, they make sores in your head, they can clean pipes with the stuff in relaxers. Also im done with worring about wrapping it or sweating it out. It take time out of my day. It actually strips yotr hair of healthy-ness. Causes hair breakage, EVERYTHING! Well i dont want it 'fried dyed and laid to the side'. Not saying im gonna go around with a afro, but i want it curly and when i show her a picture of it, my moms all, oh thats weave, or they can do that with a curling iron, or that looks nappy. Like my ideal hair, is big and full like Diana Ross (even though that was a wig or weave or something) blowing in the wind, all big and glamorous. I know various curling methods. And i gave her reasons why and shes all wait till your 17. How do i convince her to do it sooner. Also im kinda iffy about the big chop, any info?