No worries, I also tend to skip passages sometimes oops
And yes, made in Twine, Sugarcube specifically. I already had some knowledge of HTML, CSS, Javascript so I think it made it easier to understand it. The Sugarcube documentation is very well explained so that's the only thing I used tbh...
Hmm, I'm pretty sure there are tutorial playlists on Youtube that explain step by step how to make a game on Twine so that could be a good place to start if the documentation is too intimidating to start with !
Honestly, I'd be happy to help you with what you need for the basics; it'd be easier to explain on my Tumblr though so feel free to ask me over there, the link to the development blog is in the description above :^)