When I let my class down

I'm a high school teacher in my early thirties and married. Last year was particularly hard for me, dealing with personal issues that left me feeling overwhelmed and distant from the kids. One day, during lunch break, I found myself so emotionally drained that I ended up on the floor of the staff room, sobbing silently over my coffee cup. The students noticed something was off but there wasn't much they could do to help me, or themselves, for that matter. It's not what a teacher is supposed to do, and it still haunts me sometimes how vulnerable and out-of-control I felt.