No its not, we can get you started right now.
Do you have a machine you can run a web server on? Even a Raspberry pi will do fine. We can save the files on a SD card.
I can walk you through getting a development machine set up. Its more useful to use a web server than files on your local disk for a number of reasons. There is a site
w3schools.com that has extensive learning HTML resources.
The HTML used by youtube or other video hosting sites can be deconstructed to see how the controls work.
Its much easier once you do it and see it working, then some psychological barrier is broken and you just start getting your hands wet, seeing it work, and
its suddenly fun. When you see a site that uses some feature you like, just save everything to a folder.. everything you can grab. the tool "wget" is useful for this. Graphics can be done using free software tools like Gimp and Inkscape. And you need a text editor that you like. What platform do you want to use for authoring?
No Python required for basic HTML, I promise. I learned HTML from a few basic documents written by Tim Berners-Lee in the early 90s. Back then HTML was
so simple small children could understand it and did. They could be creating hyperlinks in 15 minutes.
Nothing is more fun than teaching HTML to children. If they can use a computer they can write HTML. Most HTML is rarely used. Don't be intimidated by all that stuff.