I still need to understand everything. My thirst has only grown over the years. I cultivate my curiosity by reading things that I'm not directly interested in, sometimes grinding through articles that I find boring.
Ars Technica does a great job of covering a multitude of topics while making them interesting even if I know nothing about them. Check them out: https://arstechnica.com/
Instead of scrolling on social media, try going directly to a website's homepage and reading all the articles. You'll learn a lot and maybe find something you didn't know you were interested in!