trans | coming out at work

(hello).

it has recently come to my attention that i have to come out at work. going home every day feeling like sh*t because of being referred to as female is getting very old very quickly.

i was thinking that i would tell everyone individually, sorta like "find the right moment and spring it". in a very non threatening sort of way.

my dilemma, though, is twofold. one, i have all the classic "symptoms" of gender dysphoria, including depression and drastic mood swings. and two, i am one of those trannies who doesn't pass in the slightest. i am femmy, i am a femmy boi and that is the way it is. my motto is "if fabulous gay men can wear girl shirts, eyeliner, and glitter, then so, dammit, can i". consequently, i have been asked/told, upon numerous coming-out occasions, "are you sure?", "i don't believe you", and other such affirmative phrases. long story short, i don't want this to happen with a storefull of people.

anybody have any stories/experiences for me?
i would love to hear them.