How did you know you were trans?

I'm 23 afab, I don't think I know the difference between not feeling like a woman and not feeling like the social expectation of a woman. I've always been masculine (my clothes, body language, and speech have gotten comments; can't believe people haven't found a better word than "f*g" by now) and am wondering what others' moment was when they realized "I'm not a tomboy/butch, I'm a man". I am really struggling to understand the line between womanhood and femininity, and there's this voice in my head saying "cis people don't ask these questions"...(ex. why do I feel I'm playing dress-up in dresses and makeup?). I'm just tired of being ostracized, feeling like cis people either want to fuck me or make fun of me. These feelings have been near impossible to process without a queer community to connect with, so thank you for any and all communication--it really means the world.

Also want to add I am in NO WAY saying masculinity equates to manhood, nor femininity to womanhood; just that I was born female, but haven't presented like other women I know since I was very young, now wondering what others' experiences are so I can better understand my own.