I’m a good chemist, but not IT advanced. Started using Debian out of the box last year on miniPC. Running Jellyfin only on that local machine. Don’t understand coding, but copy/ paste terminal instructions from trusted sites. Have 1TB music, films and documents. Want to move all photos from Google.
Honestly, I don’t think it’s possible to get by just trusting any particular guide without developing at least some actual understanding of the concepts underlying what you’re doing. The field is just too wide and rapidly changing for any source of info to be authoritative (and stay authoritative indefinitely after the guide is written), so it’s super important to develop the skill of looking up multiple different and possibly conflicting approaches to the task, thinking critically about them, and then synthesizing your own approach that works for your specific situation.