I'm sure she's documenting all these happenings? I agree with Elizabeth, report the teacher.

I'm sorry you're feeling stressed. You'll get through it Susan. I don't know how far away she is from you, but I'm certain that's the root of the angst, knowing you can't get there immediately. Better days ahead.

Ultimately, it's a life lesson for her. It's a cruel world out there. We have to deal with all types of people. Doing well is the best revenge. 😉