romanticize your life, take pretty pictures, feel like the main character, light up a candle, read books, go for a walk, dance to your favorite music, buy yourself presents, do whatever you want, be happy - this is your life, don't let anyone take it from you
The most underrated act of kindness is simply letting people be. Let them mispronounce a word, talk too much about a show they love, or get excited about something you don't quite understand. Everyone has something that lights them up, let them shine, even if it's not your thing.