Considering you are only 9 years old, you seem to have a grasp on who you are and what you want in life. You are mature for your age and this is a good and a bad thing all rolled up into one little ball. I don't want you to miss out on being a kid, yet I want you to learn to be accountable for your actions.
You have earned many freedoms and continue to earn more as you prove to be very responsible. Rarely, do you give me any reason to use a harsh tone.
I have been strict with you. I hope that when you are grown you can look back and know that I am strict now so that you learn the rules I set in place for you and in turn earn freedoms. Some times parents find it easier to give in to the wants and wishes of their children. They let them get away with more than they ought to. I think that it might be easier to show you the rules and boundaries and then you learn good habits. Time will tell I suppose. For now, I go with the thought of, "here are my rules, follow them, be rewarded with making choices on your own = happy mom!"
So far it works. Make sure when you are older you tell me how it worked for you.
P.S. After you get married and have your own child, you get to make up the rules.
Now Go Outside And Play!