OP, I am pretty sure w3schools takes you from zero. So do FreeCodeCamp, Odin Project , HTMLDog and all sorts of other resources. How proficient are you uin using NVDA?

Pick up a book and read about it? Why html? What about play with code and see how it works first? I found swift playgrounds to be really useful for this.

I'm sorry I don't have any experience in this. I'm just a random person with an interest in accessibility, especially for web pages and videos.

Anyway, here are a couple of links I hope will help you:

https://www.freecodecamp.org/news/helping-blind-people-learn-to-code-c47c68d4a237/

https://www.parhamdoustdar.com/2016/04/03/tools-of-blind-programmer/

Also, since I love wordpress:

https://www.mysticaccess.com/product/wordpress-websites-for-the-blind/

The cool thing about starting with something like wordpress is then you'll have your own website for your portfolio.

Good luck!