Other person answered it better then i could, but i would also add the stress that comes with dealing with children every day, and not getting paid enough for it.
Some face problems with balancing the different learning needs of students, respecting expectations from school admins, helping parents and students meet long-term goals.
All conflict falls into two categories: internal and external. Internal conflict is when a character struggles with their own opposing desires or beliefs. It happens within them, and it drives their development as a character.
