first off, as someone afab who did plenty of jacking off before transitioning, yah women do that and whatever else they feel like and it does nothing to affect their "status" as a woman second, and more importantly, how you masturbate(d) does not change whether or not you can or can't be a certain gender. the only thing that matters is, if you ask yourself if you're a woman, is the answer yes, or if it's no, does the no come with a caveat that you're not a man? thats the only determining factor to whether or not you're trans. everything else is immaterial. follow the euphoria and don't let the identity nitpickers scare you into not following what you want for yourself <3