The Feeling of "You Need to Know Everything" Is a Lie

First of all, you can not use everything. I have never seen a website that uses all CSS properties. Never. This means you do not need to know everything. Just like everybody does not need to know you, you do not need to know all CSS properties.

Youtubers can make videos about any CSS properties. But we should understand that their purpose is not education first. They want to get people's attention so they get lots of viewers. Lots of views mean lots of money. They know what they are doing. Don't be easily influenced by those business people.

Once you are in the industry, working as a professional web developer, you will gain confidence and realize that you get paid based on what you know. You will know that what you know is not everything. Theory is always different from practice.

Just know what you need to know to build what you want or to become what you want.

This article may not sound very encouraging, but this is the truth. The truth is not always exciting. Sometimes, it hurts your feelings. Another time, it feels dull. It can feel liberating too. In this case, you know that you are free to learn as much as you want without the burden of having to know everything.

Happy learning! I hope you work hard and get what you want in the web development world.