I agree that is difficult to find good blog posts/tutorials on technical stuff. When I want to learn something for the first time, I usually go through the docs and if they aren't friendly enough (for me) to read them and learn, I go and google a nice book about the topic. That being said, there are a lot of nice blog posts about technical stuff, not tutorials/teaching but actual experiences/opinions, people sharing and documenting what they learnt. I appreciate those.

Getting into macOS development and Swift. Working on a small menu bar app on weekends: https://github.com/grdnrt/MenuBarTimer

Great, always wanted to make a menu bar app, and this will get me a head start AND a timer is always useful! :-) Thx!

Why just not to enjoy the moment we're living right now, and trying to appreciate it every second, gratefully accepting the decisions of the fortune and trying to do what we like!

So you mean not working at all?

The way i'm trying to learn math right now is with https://ocw.mit.edu, then you can look up into CS or Math programs to progress with other courses