For me the secret to happiness is to produce things. Or said another way: be productive. Make something. If you have a job where you make things you are good to go. Homes, cars, ships (in my case in my youth). If you sit at a desk all day processioning forms or work in a call center, find something to produce in your off hours, often called a hobby, but it could be a side gig. Write some code, write a book, paint a mural, whatever.