I've worked in public service in one form or another for so long that working holidays doesn't bother me a bit.
I've always arranged my festivities around my work schedule. Yes, I worked this morning, although we did all get to go home earlier than usual.. patients, too.
Remember what to day is, and you might feel a bit lighter.. a day of giving thanks. Surely there is much you have to be thankful for on this day.
Meditate on THAT, and how you might bring a smile to the faces of your patients today, who surely would prefer to be seated around the dinner table with THEIR loved ones this day as well !