I've been on Linux for about 15 years now ... I'm no pro and I've never really advanced in anything with the terminal
I tried doing stuff years ago but then I came at a crossroad ... either spend my life learning the dark arts of the terminal and all the details of how every major system works ... reinstall every time I have a new problem that I caused ... or just leave everything alone and never tweak or adjust anything.
For the past few years, I just install the latest stable version of anything I use and never bother touching or tweaking anything ... never had a problem since.