She's just not good at adjustments

As with every school year, JC is having a VERY difficult time adjusting to the new routine. On the upside, I'm not aware of any incidents that have occurred at school. On the downside, she is an absolutely awful person to be around at home. I had forgotten (or perhaps blocked for my own sanity) the previous Septembers when she had trouble adjusting, but it's all coming back to me now. She loves school, and she's really enjoying it. I know part of it is that she is tired and especially this year with all the changes in our district, everything is so different. Today I watched as she and HT physically fought with each other all the way down the hill while walking home. For the past 48 hours she just hasn't been able to be pleasant with any of us. Both she and HT have spent the entire afternoon/evening, with the exception of dinner, in their individual bedrooms. I've explained if they can't be nice to each other then they will definitely be separated and I don't wish to be around either of them. Hopefully this is a passing phase for JC and she will quickly adjust, and I also hope that HT stops pushing her buttons as well!