You've worked hard all year. You're exhausted and just need a break.
Give yourself one.
In fact, periodically give yourself a break from your work. Play a game. Read a fun book. Watch a movie or TV show--or binge watch a season on Netflix.
As long as it doesn't consume your life, it's okay to give yourself a break.
But I must caution you, don't mistake taking a break for being lazy and not doing a thing. Do the work. Finish something.
Then take a brief break.
Hence the word brief.
Your mind and body will thank you for it.