you don't stop getting percieved as whatever sex they assume you first had when you come out btw.
come out as a trans man to your school? youre a weird girl that is also trans. you are hated. you have 0 of the privelege of being treated as not a woman and all the horribleness of bigotry. you are whatever gender that will harm you most.
"oh sorry u cant go on this school trip because yr not a girl and they dont wanna room with you and if you room with any men you are horribly unsafe"
"oh sorry you don't wanna be sexually harassed? well yr a man who cares? this is punching up. be a man why are you upset?"
"mm you have no say here actually cuz youre a GIRL and girls don't have a voice here. ur body my choice tehe"
all of these things can be directed at the same person. you are not more priveleged than other trans people cuz some losers out there have the most basic radfem ass understanding of how oppression works. you culd pass perfectly but the moment they know you are trans you will experience the harmful intersectionality between misogyny and transphobia. to deny that ever happened and that there are complex experiences out there is to deny trans people of their oppression. no matter your intention it is horrible and self harming to the community.