I've bought new parts and I am awaiting their arrival so I can build my brand new computer. I've decided to go for Arch Linux with KDE plasma or perhaps Gnome as my desktop environment but that's as far as I've come.
One thing I suggest is:
You're trying to get something working but it isn't going anywhere? Try again later.
First, because of the obvious calming down, since stress can affect the person's capacity to solve problems.
Second, I've noticed how many things on Linux have some degree of similarity and/or relation to one another. So trying other things in the meantime can give you the needed insight for solving a previous problem.
And don't skip over reading things! I also run Arch with KDE and honestly with almost all problems I have, if I carefully read through either the Arch Wiki (this will probably be your most valuable tool) or the error message that comes up, the answer is usually in there somewhere, it just needs digging up.
Also: if something with a GUI crashes and doesn't give an error message, try running it in the terminal. So like, if Firefox crashes and doesn't give any info, try opening up a terminal and running firefox from there and the terminal will tell you everything that's going on. (It'll be a different command if you're using a flatpak but that's the general idea.)