Reminds me of my first big success at work. There was a weekly report that people wanted generated - it showed how much like each operator had done, how much each warehouse had shipped, how many orders we lost from stock issues, etc. it was a low tech company, so they had someone going through the limited UI, looking up each thing one at a time, copying it into excel, and making the report that way. It took hours, and was error prone from stuff like mis-pasting or accidentally skipping a user.
Took a look at it and was like you could definitely automate this. Used some very primitive scripting to pull all the info out of the system’s UI and dump it into a TSV. Took like a couple minutes to run it, import into excel, and add the colors. But it was super janky because it was manipulating the UI like a user instead of, like, directly querying whatever underlying data store it was running on.
Still, management was impressed. I later learned no one actually looked at the report most weeks, so that took some of the wind out of my sails.
games? I found a civilization port for the phone and it sucked up a lot of time. Turn based so you can do it for a few minutes at a time: https://yairm210.itch.io/unciv
learn a language? duolingo and other apps are out there