I hear you!
I will have a class that is rather difficult this year. Lots of absences, not doing work, that kind of stuff. Not sure I'm ready for that to start.
On top of it, I got a second job when DH lost his last fall. I was planning to quit when school started, but it doesn't look like that will happen. So, I understand your stress of working, kids, and other responsibilities.
Kind of scared about being there for my own kids, the good job (teaching), and the crappy second job all at once. I understand about how I shouldn't complain, too. I'm VERY lucky, but, heck, I'm going to be exhausted!