I love LaTeX whole-heartedly. I never learned Word in college and wrote all my papers in LaTeX as an undergrad, just using its default styles. I write mathematical papers to myself, despite not being a mathematician. I found a LaTeX package that lays things out in the same style as old TSR D&D modules and I use that to write new dungeons. I wrote a book in markdown and used pandoc to output LaTeX and publish it through Amazon. I write silly scripts for my friends to do table reads from, using a LaTeX package. I write music scores of my composition in lilypond and one of my next projects is to combine it with LaTeX to print out books I can have on my piano.
Ultimately, I think wrestling with LaTeX is kind of like wrestling with programming. Over time, you just have to develop that sense of radar that tells you when you are over-implementing. In programming, it's the choice of whether to write custom or hunt for a library, or at a higher level, the build-vs-buy question. For LaTeX, it's whether to wrestle with custom commands or just search its stack exchange or hunt for a package. It's still easy to go down the wrong rabbit hole - last time it happened to me it was because I got obsessed with wondering if I could create nomographs in LaTeX, but luckily I discovered pynomo instead.