I did learn how to diagnose car problems and how to fix them. these were relatively minor tasks - replace the spark plugs and replace light bulbs. Also Subaru Forester has a problem if the battery gets disconnected too long-I found out about that and what to do about it on YouTube. I also learned how to cook some foods.

That being said, lately YT has way too many ads for my liking; thus I am using Reddit more and more for these things.