That's great news!!!!!
I bet the irritability is just getting used to the daily routine and the new group of kids.
I'm so glad that things are feeling stable for you!!
((my own funny story: Friday, at 3:30pm... one of my students, who had been in a lot of trouble throughout the day... refused to leave the room. He decided he was staying for detention.
Him: I'm having detention.
Me: I don't think so! You already spent time in the office, so you're done.
Him: No
Me: Dude, it's Friday. It's the weekend. GO HOME!
Him: *refusing to get out of his seat*
Me (at the door): If you don't get up RIGHT NOW you can spend that detention in the office! or you can get up and go home and have a good weekend!
rofl. Once he was out of the room I realized just how bizarre that one was.