I'm exhausted

Today was my first day back at school. There's nothing like starting a new week by getting to school at 9:30! In my defense, I technically didn't have to be there until 10, so I was actually early. I ended up working in my room until I had to go to a meeting at 2. My day didn't start too early or really require too much from me but I am so tired for some reason. I guess it's time to get my circadian rhythm in check!