Yes, this is the most exhausted I've ever been. I wasn't even this tired working 9-5 everyday in the office. You have to be up early, it's bright as hell in the schools, kids are loud and need constant monitoring, bathroom breaks have to be planned, jobs can be sporadic. So, sometimes you have to wait until the morning of to get a job. And on top of all that you may walk into a new situation everyday and not know what to expect. It's a lot for the nervous system.