I am at the end of my career. I also teach HS and electives. There has only been one year where I was at my wits end and it wasn't because of the students! I booked a weekend at Disney. I told my husband I wanted him to go with me but I was going with or without him. He stayed behind, but my son (who lives in another state) met me. We didn't go into the parks. We went downtown (I still call DS downtown) and treated him to two nice dinners (one being Shula's - he loves steak.) I didn't tell anyone since it would be viewed as a vacation but it was really mental health! It worked! Treat yourself to what you can. Also, remember all the kids in your class and enjoy the kiddos that are a gem. It will be a long year for them too because of the few. Breathe. I don't know if it would work or not, but maybe 2 shorter recess (one in morning and one in afternoon) to get extra energy out. Even a quick walk around the building before the day begins can be helpful. Good luck and we all have your back. We wish we could be there to help you!