Note that gender fluidity relates to some degree of fluctuation in ones gender perceptions. There is no particular time frame or degree associated with it; just change.
In my case, what finally occurred to me was that my perception of my gender combined male and female elements, but essentially the relative position, split or balance (however one wishes to view it) doesn’t change for me. Non-binary, as a definition, seems to be a good description of how things sit for me.
As an example of how this plays out for me, this morning I was watching the Formula 1 Sprint race from Austria and surfing ETSY for a new pair of wedges. Some would see a contradiction in that, but I never have. It is just what I do.