Burnout

Yesterday I laid down for a nap at 5:30 and woke up at 11. Confusedly awake in the dark and quiet of a house full of first year teachers, I debated getting up and doing work or just closing my eyes again. I read my remember-you're-an-actual-human-and-not-just-a-teacher book for about a half an hour again and was out again until 7 this morning. Just give me four more of those and I'm ready to go back.
Yesterday and the day before my fourth period class made me thankful I only signed up for two years. I tried to do a blank-slate day and start over, giving them all the chance to start fresh and for me to reintroduce myself and my hopes and plan for the class this year. The professional development specialist at our school (in whose box I'd left a "Help me!" sort of note) was there observing- and she took down a lot of phone numbers and told the kids she'd be making a lot of calls home this weekend. It's just incessant noise. And then after talking throughout my directions, despite my requests/verbal warnings etc/announcements I'm calling home. They yell across the room "Ms. Craven, what to do?"
The motivational quotes I have around the room are as much for me as they are for the kids. "In the midst of great difficulty lies great opportunity," etc. remind me I need to stay. Need to suck it up and try again.
When my fifth period class enters and sees the wreckage left by the 32 kids in my 4th period class, they sweetly offer to help clean up, rearrange, and repair. "Man, your other class be bad!" They exlaim, gathering chewed-on balls of paper (I kid you not) and broken pencils and pens. The contrast of the two groups is astounding.
Another note: our school is officially overstaffed, and another high school down the road is understaffed by 20. Their average class size is 55-60. It is quite possible I will be transferred. It would be crazy to start somewhere new three weeks in, but it's out of my control. Nothing to do but keep on keepin' on.