In 2017 I decided to do a simple "Gratitude Challenge".
I took one photo every day of something for which I was grateful and posted it to Instagram with a brief explanation. I'm not a heavy Instagram user and my account is private, so this was for me, not for likes and follows.
This initiative was more difficult and more work than I expected it to be when I began, but I didn't miss a single day.
ended up with a lot of pictures of my kids, several photos of my family and friends, and a few silly entries that were clearly made at the end of the day when I need to post something to maintain my streak.