Practice, practice, practice. Write in your journal about your latest adventure withyour friend who uses xir pronouns; talk about xir in the mirror to yourself; if xe's given you consent, use xir pronouns in conversation with other people. It's really not all that hard if you don'twantit to be hard."
For context and comparison, that's eeriely similar to the way I prepared for my A-level French orals in the hopes of going to university.
I actually find neopronouns quite easy (it's probably the French!), so I wouldn't have to do that, and I've never thought about how hard other people might find it. But that started me thinking about how I would feel if I found out that other people were having to go to that much effort to accommodate me. I felt rather ill at the idea of adding to everyone's mental load that way.
Honestly, I'm staggered at the arrogance of casually expecting all the people you know to put in that level of effort. You can say tolerance, acceptance and all that, but where's the tolerance for the parent of three, balancing work, homeschooling, and maybe an OU degree?
Where's the tolerance for the teacher who works 12 hours a day between classes, lesson-planning, marking and doing school paperwork, who is now expected to use their copious spare time talking into a mirror instead of slumping on the sofa watching Bridgerton?