Wow, that's great that you can do so many different kinds of writing! I mostly stick to short fiction and mild science fiction, but I would love to be able to write poetry and nonfiction as well. Maybe someday I'll give it a try, when I'm a bit more experienced. And hey, don't underestimate yourself... You want to submit to Redbook? Go for it! They might really like your article! I know it's cliche, but you'll never know unless you try.

PS. Being a teenager myself and having had many recent problems with privacy, I would be very interested in reading your article. Let me know if/when and where it gets published so I can check it out!