I dislike the narrative that you can’t be happy as an adult. Yeah having nothing to do and no responsibilities was cool, but I would not trade what I have now to have it back.
Adult me has an awesome wife and kids, good friends, hobbies that I wouldn’t have dreamed of as a kid, a tool bench full of fun power tools, and freedom to use my free time basically however I want.
I am way happier as an adult than I was as a teenager.