Wow, that does sound like a lot of stress for sure.
During six months, many years ago when I worked as a freelance teacher, I taught two merchant classes how to use computers. There were more than 30 students in each class, and they came and went. I never even managed to know them all by name, and then I had to give them grades based on their performance. Even the latest students I'd seen only once.
Crazy.
Teaching is a stressful profession filled with unrealistic expectation from the employers. Yet we perform. It requires great patience with both the learners and the bosses.
How was your experience though?
Bad at that place. Nothing worked on that school. At other places I loved teaching, but except for that school, I only taught adults, not kids.
Lack of resources and proper facilities can ruin a teaching experience. I'm happy to hear that your other experiences were good. What did you teach?