•buy toys/dolls/crayons
•play with Legos
•play old videogames/dress up games
•weave friendship bracelets
•watch cartoons
•use stickers
•draw pics of your favorite charactersIf it makes you feel nice, do it.
Don’t even worry about what other people think, because it doesn’t matter–if it brings you happiness, it’s not “ridiculous”, or “immature”.You deserve to enjoy yourself.