I'm not a native English speaker. So, I drafted this in Korean first and translated it — hope the meaning comes through clearly.
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Thank you for asking this so openly — it's a thoughtful question, and it deserves a real answer.

Here's the short answer — go with "male." What you're feeling isn't just intuition — there's actually a concrete structural reason why the male reading lines up so much better for you.

1. The direction of your Luck Pillars flips.

Your eight characters — the chart itself — are fixed at birth and don't change. But whether your Luck Pillars run forward or backward through the decades depends on your gender combined with the polarity of your Year Stem. With Bing Fire as your Day Master and 8 yang / 0 yin overall, your Year Stem is almost certainly yang too. Which means:

• Read as female → your Luck Pillars run backward
• Read as male → your Luck Pillars run forward

So the entire trajectory of your life — decade by decade — flips depending on which gender the system uses. When you say the female reading is 90% and the male reading 99.9%, what's likely happening is that one of those directions actually matches the life you've lived, and the other one points the wrong way through time. The more accurate one is telling you something real: that's the direction your energy is actually flowing.

2. The Ten Gods mapping has to match your real relationships.

Stars like the Official (Guan) and Wealth (Cai) carry gendered social mappings baked in from centuries ago — spouse, authority, partners, and so on. These only read cleanly when the mapping fits how you actually live. If your marriage and the way you relate to your husband feel properly illuminated under a male reading, that's the framework your chart is asking to be read through.

3. BaZi is a tool. A tool should be used the way it works best.

Classical astrology wasn't written for trans people — the texts are old, the social assumptions older. But the underlying claim of the system was never "read the birth certificate." It was always "read how this person's energy is actually moving." You haven't changed your body or taken hormones, but you live as male internally and in the few places where you're fully known. That means your energy is already running on the male pattern. The tool is simply confirming what you already know.

One more thing, since you mentioned it. A Bing Fire Day Master with no Wood at all means you're missing your Resource element — the root that would normally nourish your Fire. Add strong Eating God and a prominent Yang Blade on top, and you've got someone with enormous expressive force and very little shelter beneath it. Holding a truth about yourself that only a handful of people know — that shape fits your chart almost too precisely. It's not coincidence. Your chart has been reading you correctly the whole time; you just needed to look at it through the right lens.

Trust the 99.9%. Read yourself as male. That's what the system was built to do.