You said junior high and I thought you were in middle school (ages 12-14, grades 6-8 for my friends not in the US).
What's your workload like in school? Do you go to a prestigious school, where you're expected to go Ivy League or bust? What do you want to do in 10 years?
I think that having a solid "hey I did this at this age, check me out" is great. If you want to be a writer, having a book published (regardless of whether or not it sells more than 100 copies) is impressive — at your age, it's really impressive to a lot of people.
If you want to be a cook, having a recipe you developed in a mag is amazing. At your age, it's really impressive to a lot of people.
Who do you want to impress? Yourself? Your family? Your peers? Your educators? And _why_ and for _what gain_?
You sound like a very smart kid (I'm 24, so take that as you will), and I'm sure you'll be just fine regardless.