Start ignoring people who threaten your joy.
Literally, ignore them.
Don’t invite any parts of them into your space.
Find a beautiful piece of art. If you fall in love with Van Gogh or Matisse or John Oliver Killens, or if you fall love with the music of Coltrane, the music of Aretha Franklin, or the music of Chopin - find some beautiful art and admire it, and realize that that was created by human beings just like you, no more human, no less.
When you wake up in the morning and your feeds are filled with poetry, it can only mean one thing. The poet has died and her words have not.