My hobbies really revolve around the guitar in the main, but there's a life theme to it.
I like to do things myself.
I started doing my own pedals, and have built 5 or 6 clones / pedals to date, some modded, some not.
When my AD15 valve heater circuit failed, I fixed it myself.
So..... DIY.....We're in our 2nd home and about to move on to our 3rd home.... each home has been worse I condition on purchase....
The 1st home was an apprenticeship.
The 2 home made me develop on those skills, be it repointing, or rebuilding boundary walls, minor plumbing (I won't mess with the boiler) or electrical jobs.
The 3rd home will test me to the limits.... no heating, electrics dating back to the 50s, last decorated in the 70s, unoccupied for the last 2 years. And just to make it more challenging, we now have 2 kids........
And again, even in my professional life, this mindset has served me well. I work in accounts and finance. I've had to learn how to produce reports, clearer, more reliable, faster than we could before. That has led me into Excel Macro and generally VBA coding. Again learnt on a DIY basis, and can now code some fairly advamced and complex stuff that's been make the life of people around much easier.
Learning new programming languages too these days.