how do you convince your mother to let you do somethig?

Answer 1

Act responsibly so she will know you're responsible enough to be trusted with this. Do things for her without her having to ask - like cook or do the dishes and housework so she can see you're growing up right and have good sense. Talk to her about stuff you've done right - someone you avoid because they're involved in drugs, stuff like that.

Answer 2

do what you say you're going to do, be obedient, act responsible, and just be a good kid and your mom would let you do what you want to because then she trusts you....