Be kind and non judgmental - to yourself and to those you interact with.
Bonus points if you would rather be angry or annoyed.
If it sounds too hard, try starting with just thinking about it.
Here's Brad Paisley:
or the original, Glen Campbell:
https://youtu.be/rF_DHc76PGI
Thanksgiving Day has so many special aspects that highlight how much we have to be grateful for. You get to pick your focus- family, friends, football, feast, foliage and so much more. It is easy to get swept up in the planning, or to feel sadness if something from the past is no more- Taking a few moments to get quiet, and focus on what is going right can turn that around.