I'd just like to point out that almost all of these stories in this collection were rejected by some publication at one time or another, some of them have been rejected a lot, in fact. Find people you trust and listen to them.
I see myself as a novelist, period. I mean, the material I work with is what is classified as science fiction and fantasy, and I really don't think about these things when I'm writing. I'm just thinking about telling a story and developing my characters.