Learning HTML

The only way to learn HTML is to actually write HTML.
Endless videos on YouTube won't make you a programmer or a proficient HTML writer.

In order to learn HTML, you need to write HTML.

Think of it like this; does a piano player only copy the notes onto a music sheet, or does the piano player actually play the notes. Only through hours of practice of playing on a piano, does the piano player before proficient. No difference for the HTML writer.