It's scary, but really interesting, being willing to give myself space, and to occupy that space, regardless of the feelings of other people who have falsely determined that space to be theirs alone. I dunno, some people out there seem to feel like every space should be tailored to maximise their comfort and enjoyment, but that's not how it works in a functioning society.
We all have to tolerate some discomfort in most spaces, and if i'm willing to let people misgendering me and giving me funny looks go, you should be willing to let me have a piss in peace. I'm seeing less and less every day why i should feel obligated to apologise for that. If someone wants to make my existence or my presence a bigger problem than it actually is, that just reflects on their character, not mine.
I've made this very trans-specific, but for me that's been a medium for a more general shift, and it's a general point overall. You're entitled to take up space. So long as you show basic respect for those around you, you aren't doing anything wrong. If anyone wants to tell you that it's your failing if they aren't getting handed everything they want, it's that person who needs to go ahead and shut the entire fuck up. Don't let other people's unrealistic expectations define who you are allowed to be.