We feel like we're wasting it, and we feel we should instead spend time archiving goals, to better ourselves, to do something more meaningful. But that is not how life works. You are just unnecessarily burden yourself with guilt. Thinking you should be doing something else. There are so many things to learn about, so many things to experience, right? We fear on missing out on life, chasing something, but what exactly we don't really know.
But maybe you just don't need to? Most of us are exactly fine with where we are. Of course you should always strive to improve, but truth is "killing time" is a big part of life. Especially for top of the food chain animals like humans. Watch some livestreams of lions on youtube, what do they do? 99% of the time they just sit under a tree doing absolutely nothing, and I bet they don't feel guilty about it. People used to walk labyrinths for hours and hours, just to kill time.
This whole notion that you need to make the most out of every moment, live life to the fullest, see all the places, chase the uncomfortable! - I don't think it's necessarily the best advice, the happiest people I've met tend to have very simple boring routines.