I was like that too. I knew I wasn't a man and I hate the idea that someone could mistake me for one. But I didn't really fell woman either.
At some point, I though "maybe I'm 66% female and 33%?" but that wasn't that either.
Then I realize that gender made utterly no sense to me, that all this gender thing was bullsh*t (to my eye) and that I was most probably agender.