My first language in anger would've been MatLab. Not by choice though. I did engineering at uni and so it was required of me to learn and understand it for assignments. Not touched it since though! lol.
I'm mainly frontend now - VueJS and I do some work in PHP too.
However, that's not to say i havent done some decent projects in others such as python, golang, java/android to name a few.
I try. I quite enjoy creating technical documentation too, mainly because I learned how to be good at it haha. Yea, most of the stuff I tried was from my crypto trading days (1-2years ago now) when I was trying to build bots to trade using machine learning.