I'm AFAB bi-gender, I go between male and female only (each lasts 2-5 months, not under my control at all), and occasional transitional times when one is waning and the other is rising, and both are present. I don't claim genderfluid because I don't have any other gender identities in-between my male and female genders.
I made the decision to keep my birth name (slightly altered - but both names are already unisex dependent on spelling and language) and *add* a male name to it. My name will be long, but I gave my daughter three names at birth, so, meh. I'm still deciding what order to organize the names. I have just over a month to make a final decision, along with the spelling of two of the names (they have alternate spellings, and I have to decide which one is more "me").
Pronouns - he or she are both fine, no matter which I am at the moment. I tell people to use whichever comes naturally to them in the moment. That tends toward the "she" usually, mostly because my body isn't responding to testosterone (16 months, I think?) so I tend to continue to present as femme. I'd rather not deal with looking like a woman dressed up like a man, and women's clothes still fit/look better on my body. I'm very aesthetic-oriented, "to look good is to feel good." So I rarely fully present male, even though emotionally it feels wonderful. Personally I really hate the middle-pronouns ("they," "xe/xer/xim" or "ze/zer/zim,") because those terms trigger my dysphoria. Non-gendered terms feel like they are denying both of my very binary genders and pointing out the middle ground, which is really dysphoric for me as a transition between my female and male gender swings (which lasts a few weeks and is miserable).
When I'm all guy and present as a guy I feel laid back, relaxed and centered, like I've settled into my bones, in ways I can never feel when I present female. When I'm all girl *and* present female I feel fierce and powerful, able to take on the world, I have the energy and will do do anything I want.
There is no one way to do it. Everyone has to find their own path and comfort zone. The above is what works best for me. It's okay to play around with it for a while to figure out what works for you.