For those who have a fleeting feeble mind, misgendering could lead to undesirable ideas and perception. For some it may be extrapolated to add stress or anxiety to an every day principle.
Be it accidental, or meaning as a negative, misgendering for me is a slight non-issue. With family, I understand that as I go through transition, they are as well, so I just wave that off. With co-workers, dependent of who it is, I know who does it with malice, and those who just accidentally slip; I just justify it as a non issue, due to those who correct themselves, or I just consider my well-being as I don't need extra drama. To everyone else who does so, I just don't let it get to me.
Sometimes though I tend to mentally roll my eyes, or face-palm, when it happens. On bad days, it does get to me slightly, but then I also realize that my journey is still in the infant stages, so perception of right now does not equate to when I do kick off my journey into adolescence, and adulthood.
The thing is with my own concept of active meditation has helped me greatly as a 24/7 state of mind, it helps me define myself, and clearly take things with a grain of salt. My actions make my own living standards just flow with only slight turbulence.
What I can do is recommend others who may not think like I do, is just relax. If there is say something that you do not agree with, don't let it get toward the emotional sector, look at it from a different perspective, and then you can come to terms with that said proposal, and give it a solid "shove off" and turn it into a non-issue.