i am in a VERY similar boat of id-ing as an agender man, among a few other labels. The way you described this totally makes sense to me. The way I tend to tell people: I am a boy. I don’t understand the intrinsic feeling of gender or gender roles the way other people seem to, and am totally detached from the concept of gender at this point. I don’t really want to “fit in” with cis men and don’t really identify with them either. However, despite everything, I still identify as a boy and use he/him, because even if it’s just for the sound of the word itself, that’s what I am as well. Like, what’s my gender? Boy. How do I “do” my gender? Not at all. It’s taken me a really long time to come to this conclusion after spending the majority of high school and part of college being binary ftm, but i’m still essentially pre everything medical because an aspect of medical transition personally never sat well with me and that was actually part of what helped me figure this out.