So I am also just like you! Most of the time I'm very neutral like agender and don't care but some days feel fluid. I usually say I'm gender-fluid because I feel the fluid also can fall in the middle at either or nothing.
In terms of the queer community you fall under trans. In terms of gender it's cis or trans for the umbrella terms. Anything not cis is trans. I don't usually say im trans because that has its own society attachments. But that's where you fit in mostly.
But also remember gender and orientation is all made up and you can feel comfortable wherever and however you want ❤️