It's a dirt bike for crying outload. Riding on the streets is dangerous. Sounds like you've never had a cycle, maybe, not even a mini-bike. Big bummer. If that is the case, how crazy can you get. If you can, start talking mom and dad into taking you to dealers and test driving some. Show en your skills. I don't know your situation, so, take what you can out of this. Parents always cave eventually. Look at all the protective gear M-xers have to wear. You'll wear all the attire, right. It's recreation. Geesh, how many parents b..ch about there kids playing nothing but video games and never going outside.......
I'm a parent, my kids ride. But I taught them. Your parents need more ammunition than that to shoot it down.
Yes, you do need some advice. Good Luck!