Just a few ideas to make the most of your writing.
#1 As already mentioned begin in personal Journal form. You are writing to yourself that way, which is different than writing to others. (you can take risks in your private journal that may provoke you to greater things)
#2 From your Journal, then glean the best information you wish to communicate and write it for public consumption.
#3 Find your wise counsellor(s) to review what you have written for accuracy. After all, if you want to publish anything you want to make sure you provide value, and if your info is bad the value is zero. (In the professional world it's called "peer review")
#4 Get CREDIT for your writing. Find a journalism/english teacher at your school that would be willing to critique and grade your work (before submitting for publication). You can get some extra credit in school and refine your writing skills at the same time.
I know that sounds like a cumbersome way to go about things, but in publishing it all takes time anyway. (just ask Brian how far in advance articles are written before they EVER see print). It will also make you a better writer, researcher, student, AND teach you PATIENCE... which is a valuable commodity you are in need of
aren't we all