Looking toward a better school year in the fall

The past two weeks Thomas has been saying he doesn't want to go to school and is having a very hard time separating from me at drop off.  He is crying and saying he wants to go home.  Usually the assistant teacher has to pick him up and take him over to a quiet area so I can leave.   The circus graduation has been over for a week now, so not sure if he is still having anxiety about this.  He knows it is over, but his mood has definitely changed at school.  Even the director who greets us each day mentioned that he does not seem comfortable lately.   I am frustrated that he seems to be regressing with school.  Definitely not where I envisioned he'd be at the end of the year.  Sad to be ending the school year on a bad note, but he will be starting a new school in the fall.  Instead of worrying so much about this, I going to try and be positive by focusing on laying the groundwork for a new better school year this fall.