This is worth the entire post and more. I'm chuckling while my kid gives me weird looks from the other room.
bobbyfiend
The second thing is legit, I think. I often communicate with, or see content from, data analysts and researchers from England (I'm in the US). England and many other parts of Europe use a comma as a decimal point.
I've never heard of the semicolon in acronyms/abbreviations, but hey, it's a big world and I don't know lots of things.
If it helps, you're not alone. I've spent decades of my life pursuing a career, and in the past five or so years I've come to realize I will never accomplish the things I used to dream about, like making an impact in my little field, etc. It's a really, really unpleasant realization. The only silver lining I can find for myself (and it is helpful) is that I can let go of the "must excel" and "must go above and beyond" mentalities. It frees up time and mental resources.
Don't forget racists. Plenty of those are drawn to the Mensa labels, too.