You can "improve" at "reading books"
1 - Learn fast reading
2 - get classical/sf/hf/polar/etc culture
Most of the books i read gives better knowledge about something (history for example) or makes me more able to handle complex reasoning (philosophical, analytics, etc)
You can definitively improve at reading or read to improve yourself.
I think there is no passion where you cannot improve. And there is always a way to measure it.<p>Anyway, I find your approach of 'hobbie' a bit strange. I feel like hobbies are something that closely relates to 'you'. I mean, if you like sport, you can go to dance, mma, shooting, trail, basket, hand, etc. Possibilities are endless.
If you like intellectual activities it can goes from video games to engaging in neww studies (physics, neuroscience, etc).
You can go in artistics things like painting/sculpting/photography/street art/...
You can go on blacksmithing/woodturning/jewelery/etc<p>I think the best question to find your hobbies are: "what do i want to become ? what time do i have?". I know someone who's struggeling with an urge to find something to do after his work an who finds him unable to engage in any activity because he is not driven by wanting to do something for a purpose but just to have an activity. Having commitment for something you do just to makes your life less empty is really hard. It's easier to find hobbies if you have a goal.<p>I don'y know if it makes any sense to you or even if it's revelant, sorry if it's not the case.<p>EDIT: just posted on HN : <a href="https://idiallo.com/blog/im-bored-what-do-i-do" rel="nofollow">https://idiallo.com/blog/im-bored-what-do-i-do</a>