As someone who used to want to die but loves life I have more to add
critters! Go to a reputable zoo/rescue. Go on a hike with birdseed and feed chickadees from your hand. Befriend your local crowd. Grow plants to attract butterflies and moths and beetles. Go on walks just to find dogs to pet (always ask first) go to a pond to watch fish and frogs and ducks. Nothing makes me happier to be here than the animals I get to share this life with.
make art. Make good art or shitty art. Use oil paints or finger paint or crayons or chalk or watercolour or any other medium. When you’re in kindergarten and you make art you don’t know if it’s good or bad. You just know that you made something yourself. And sometimes the art is the process. The fact that we live in a world where we have the joy of creativity is amazing. You made something. Be proud of that. Have fun with it.
do fun things! Do kid things! Go sledding in the winter. Play mermaids at the beach. Make camp bracelets. Buy a dollhouse and decorate it. Roast marshmallows. Go to a playground and slide again. Use a swing set. Swinging + music is where it’s at.
Make an imaginary friend or bring back your old one. You don’t have to talk out loud or act crazy. Just pretend you have a dragon that nobody else can see. Imagine there’s a floating dolphin beside you. You have an imagination somewhere, I promise. It’s not dead, just dusty.
I promise. Life can be amazing. Sometimes you just have to stick around a little longer to see it.