I'm actually younger than you are yet.. and it's not that I know everything about collage, but we did have this one program that prepared us...
Maybe try some community service hours, and the extra activities that you're in are great!

If you're not already, maybe try participating in an activity that has to do with what you want to go to collage for.
Ex. If you want to be a vet, why not try volunteering at the animal shelter? And things like that.
Because sometimes they will pick a striaght B person over a straight A person because of their community service hours and activities.
Hope that helps, and good luck with collage! I hope you can get into a place that you want to get into.
