I like making stuff. The point is that you do something where you can see something grow over time into something more than just the sum of your effort. It can be anything.

I own a house, so most stuff I make are extensions or improvements on the house. Last year I build a chicken coupe. This year I remodelled the unused hallway.

If you don't own a house you could try volunteering somewhere. I recently started volunteer work with the theatre group my daughter is a member of.

Or maybe gardening, rent a plot at a community garden.

Even working out at the gym can have the same effect.