You have to be dedicated and flexible. Things can change on a daily basis and you just have to roll with it. Class sometimes amounts to 80 hours of work in as little as 6 days. Sometimes my only contact with what's going on in the outside world is what I hear from the students. It's hard to leave your family to spend nights in the dorm, but it gives you a chance to get to know the students on a level aside from training.
Class can be hard sometimes.
It's more mental exertion than physical for the instructors. If students are stressed, worried, or anxious, that has a direct impact on an instructor's mindset, and vice versa. If I can be supportive, honest and up-front from the outset, I can help them. I'm not the kind of person to smooth things over and make it seem as though everything is all right if it isn't. I think it's better to work things out in a respectful way.