Don't feel ashamed of doing "CHILDISH" things
•play with Legos
•play old videogames/dress up games
•weave friendship bracelets
•draw pics of your favorite characters
If 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.