Hello! Welcome to the community!
If you mean you have already finished the Learn HTML course, then the next step would be to learn how to make your webpages pretty using CSS! Give the Learn CSS course a try.
Another good idea is to practice making your own webpages outside of the Codecademy environment. I’m not sure if this cheatsheet project is only available for Codecademy Pro users, but this is a great one to practice HTML with! If you want to work on your own projects, take a look at this article about getting set up to code HTML/CSS on your own computer using Visual Studio Code.
I hope that helps a little! Good luck continuing your coding journey.