Your calendar can be as unique as you are – for example, you can make up your own names for days of the week, you can have say a 3-day week rather than a 7 (though you'll have to keep track of "normal" days for a job or school etc), and you can celebrate your own holidays. Two things that have really changed my life for the better are creating and celebrating my own holidays, and keeping track of them in a looseleaf notebook with 1 page per day. I feel much more free and myself!
Go over to my food blog to see the 3rd of 12 installments of a menu cum cook book with lots and lots of holidays! Including many food holidays, but also holidays like the birthdays of my favorite authors.
http://favoritefoodthisweek.blogspot.com/2022/02/the-3rd-of-12-installments-of-wonderful.html