What is the term for my gender identity?

My biological sex is female. I prefer masculine pronouns by far, and when my name is said I feel like I'm being insulted and I don't feel like it's my name at all. I preffer unisex names. Basically I'm confused, but if I had to give myself a label, I guess it would be gender fluid, being cis-male most of the time but other times agender. I would never take hormone supplements or have surgery, but at times I feel ashamed of having breasts, even though that obviously not my fault and they're not that prominent anyways. A couple of times I've been called 'he' and I feel much more myself when that happens, and I feel insulted when peoel assume I'm female. I know labels don't really matter but I feel like if anyone asks, or I need to tell peole what to call me, I should have a simpler way of explaining it, ie a gender identity label, even if it's one that not many people have herd of. Thanks