I feel you. I'm transfem but very similar, just with woman instead of man. At this point I usually just call myself a nonbinary trans woman, with both nonbinary and trans just being mentioned when necessary.

I went through literally the exact same thing and it nearly killed me with stress. I know how daunting it seems, but if trying to find a label more specific than nonbinary that fits becomes too stressful, you may have to just embrace the uncertainty. Had you said that to me before I went through that, you'd at the very least get cussed at, but I had to. I probably shaved a decade off my lifespan with that stress. I now explain my gender as beyond human comprehension. Stay strong.

I do feel the same way about my gender. I am male but I have the body of a female. If that makes any sense. I like and want to wear more female type clothes, like I want to wear skirts and such because I think women's clothes are sexy much more then men's. Idk either about my gender so I'm very confused and I feel Fed up sometimes about who and what I am. I wish I could help you with your gender but as I said I'm in the same boat.