I would start with Python it’ll help demystify a lot of programming terminology and methods. I have managed to avoid JS for now but I have to learn it and for web you need at least a basic amount plus you could prob stay in the JS ecosystem for pretty much everything you want to do. Ruby is cool it’s coming back but like Python it tends to be more common on the back-end, that being said there’s some really interesting languages that have spun off it.
I would go Python till you hit a wall it’ll prob be the GUI then learn JS
Python is good for quick results and it’ll help maintain a good hits as your learning. But no there’s a reason JS is so popular and people keep spinning up tools based off it.
You will need more that just one language, if you think you can stay self-motivated for your goals I’d go JS.