Yeah, I've been called all kinds of things. When I was first going through my transitioning it took a long time for my mom to get it right, she would still call me by male pronouns, not intentionally, just out of habit, and even after having my name changed she still occasionally called me by my birth name, I expected it, its not an easy thing to get used to, these kind of changes, so drastic and sudden for them, but it still upset me. Now from strangers out in the world, he-she, and it were very commonly used, it pissed me off, I wanted to bash their faces in, but instead put it to the back of my mind, payed them no more attention, they were jerks that had apparently more problems than I did to have to go around calling people different from them names or other such worst derogatory things. Sometimes I'd get so angry I'd have to go someplace to hide and cry it all out. Not everyone does it intentionally to hurt you, they just don't understand and know how to act towards people such as us, so naturally they're going to feel uneasy, call you by the wrong pronouns, treat you in a way opposite of that which you desire, they lack knowledge, how are they supposed to address this thing, what is it. Which brings me to titles, such as sir, maam, most people especially in the professional world feel these are necessary attachments, and when someone comes along that looks the opposite of what title they just used, there's a slight chance they could get that wrong, even with someone that's not transgender, some women get mistaken as men, and some men as women, and because of this mistake, though most of the time unintentional, can offend and hurt the person it was just said to. The way I see it, don't take it too hard and personal so long as you know in your gut that it wasn't done to you on purpose to hurt you because you are different from the norm. But obviously if terms such as "he-she" or "it" are used, it is intentional, respectful people just don't act like that towards another human being.
