Free time in large chunks, was the revelation for me.

I took a serious "staycation" back in December, and wrote about it here: https://www.reddit.com/r/Coronavirus/comments/fgvbsv/staythe...

During those few weeks, I made what seems like a year worth of progress on several projects. Being able to dive in and focus, for hours at a time without worrying that I had other stuff I should be doing, made all the difference in the world.

Rearranging your week to have one "no-chores no-email" evening, when you just use a single large block of time to immerse yourself in a leisure activity, is worth a try.

In fact there is still many kinds of information that could not be found in Google.

Yes. Almost. There's a complexity threshold over which there is a need for: vision, full stack, deep dive, patience, steady progress over long periods of time. And yes, certain amount of extreme drive to go over the bumps ;).