Understad the things you use every day.

Using a phone? understand how computers and operating systems work and how networking works, at least at a basic level.

Brushing your teeth? Learn how to do it correctly. Understand the logic behind it. Do some basic research.

Own a car? learn how to maintain it, understand how it works, understand its limitations.

live in a house? understand how to maintain it, how to repair it, how it works, where your electric box is.

Etc. You don’t have to be an expert on everything, but you should have a basic understanding of the things you use every day.