Let me explain the question: I have several hobbies like playing the guitar, sometimes singing, walking and enjoying nature, reading and lately sunbathing while hearing an audio book.
Playing an instrument, singing and reading end up being tiring, even if I enjoy the music and the reading. I feel I have to stop after being concentrated for an hour.
Quieter hobbies, like walking to enjoy nature end up being boring as well. The only completely passive hobby I have is sunbathing and it all depends on how interesting the audio book is.
Sometimes I’d like to practice a hobby, but I’m so tired I end up lazying around, watching a stupid youtube video but thinking I should do something else.
What else could I do? Any other completely passive hobbies?
No drugs, no alcohol.
Become a tourist in your own town. Find out what the big attractions are, and visit them. People love in a city, and never visit the museums, parks, libraries, etc.
Or expand your music by getting into recording. You can get Digital Audio Workstation software for free (I like Reaper and Ableton), and start recording yourself playing and singing, and since it lets you overdub, you can do all the background vocals, and even the other instruments. The learning curve is steep, and it’s almost like learning an entirely new instrument, but it’s fascinating, challenging, and fun.
Or find other players, and put together a little band, just for fun.