I am a Linux beginner/amateur and I have sort of had enough of copy and pasting commands I find on the internet without having a good understanding of how they actually work.

I guess my end goal is to be able to comfortably install and use arch Linux with my own customization's and be able to fix it when things go wrong.

What tips/ideas do you have for getting better at navigating the terminal, and getting a better understanding of how the os works. What is a good roadmap to follow? And how did you, advanced Linux user, get to the stage your at now?

Edit: my current distro is bazzite just in case you were interested and thanks for all the replies you are all really helpful.