C:\Program Files\Neocities Tutorials>
How could i start without this? Not only does it have a tutorial to walk you through the basics of code, it has dozens of other links! HTML, CSS, CSS frameworks, JavaScript, static site generators, WebGL, 2 and 3D graphics, it's all here!
C:\Program Files\Strovi Neocities
This has an obscene amount of resources for HTML, CSS, JavaScript, and more.
C:\Program Files\Stack Overflow
A forum for all kinds of programming! Reddit, but if it was actually useful.
C:\Program Files\w3 Schools
Like Stack Overflow, except it walks you through how and why the code works the way it does!