Gotta figure out if you're jealous or envious, and what it is about what they're doing that you are of, then build that, sometimes it takes a while.

Also, if you don't feel like doing anything, maybe you're staring out the window at others instead of seeing to your own needs and interests.

As an aside on this topic, the Icelandic music artist Dadi Freyr just released a good song that's mildly relevant https://youtu.be/ebAvkqpA9MU