It's not too difficult to pick up. I only knew old school HTML programming before working with it. It's actually not too dissimilar to that. Anything I don't know how to do I can usually search for and find the answer, and there are a number of YouTube guides for it. But for a very basic VN, the tutorial does cover most of it.
I'm not sure what code editing program you tried, but I use Visual Studio Code (VSCode) which has a Ren'Py extension to make the code different colors depending on what it is, which helps parse what I'm looking at.
For YouTube, I think Zeil Learnings is easy to follow: https://www.youtube.com/c/zeillearnings
She also has an itch.io page to download templates: https://zeillearnings.itch.io/
This guy also has good videos. The very early ones cover the basics: https://www.youtube.com/@vimi