Help an old cisgender, hetero lady out

I’d like to say that my work has helped society move forward toward acceptance, and many people tell me it has. But as this progress continues, I’m beginning to feel a little left behind. I’d just about wrapped my mind around the concept of transgender and was getting really good at using “she” and “her” for trans women, and “he” and him” for trans men, when I started to see articles about the movement—largely on college campuses at first—for a whole host of other pronouns being insisted upon by people who don’t identify with the binary categories.