I wasn't getting misgendered at all after a certain point, at least as far as I could tell. This went on for a good year and a half or two years. Then, about six months ago, I went into an office supply store and was ma'amed at the customer service desk. I can't remember whether it was a man or a woman who addressed me. I think a guy. Without thinking, I got a befuddled look on my face and said, "Ma'am??!!!" We both laughed about it, and he apologized and said that his boss was a woman, so he just fell into it. I don't know if that's true, and I don't care. To me, this was one of those classic misreadings that occasionally happen when clerks don't take a long look at someone.
My ex, who is a little femmy, was occasionally misgendered. He was always amused and never corrected the other person. He is not confrontational. Of course, when he opened his mouth and said something, they immediately realized their mistake and were acutely embarrassed.
Then again, perhaps one aspect of his amusement was his knowledge of my own trans-ness. Sometimes, when we went into a store or went out to eat, the server/clerk would say something like, "What can I get for you gentlemen?" It was always awkward for me because I didn't want to say anything and not sound like a guy.
Dominick, people do tend to make quick evaluations, and height is often an important element. But I know a trans man who is super short, and absolutely nobody doubts that he is male. It could be that with shorter guys, especially those who transition fairly young, it just takes longer for them to be read accurately 100% of the time. But your face looks awesome--you look exactly like a teenage boy to me.
If you're still frustrated about this--and most of us would be--do post a video (or at least a voice clip) and see what kind of feedback you get. Or share it privately with people by PM. One thing I do know--it's easy to miss little cues if you already accept the other person as male. I didn't go out of my way to analyze my friend until I realized that other people were still misreading him. Your own friends might be doing the same. But I still think that it's less stressful to just let the "passing" come in its own time rather than trying to eradicate any "feminine" characteristics you might have.