Cool! A lighter topic in puberty!
Yeah, you definately will, but you gotta make an effort and take examples of good role-models. I look up to my coaches, my mom, and my music teacher. Growing maturity and defining who you are is really tough. There's different places to grow, like me being a musician, I have to develop the maturity to interpret and play music in my own way without going over the bounderies of the era it was created. Then there's your own maturity...bah...just so confusing...
But yeah, look up to good role-models around you and that will help you be more mature. The thing is that you have to try at that and not just let it come to you, since there are people I know that are 25+ and are still really immature.
I think I confused more than I helped