It's never a dead end
Idea. It's just, independent of the programming language, with all of the languages you describe logic in code. So if you really want to learn that, you have to learn a syntax and basical thinking in "chains". Because that's what you do in the end: building a chain of instructions.
I think, Python is very fast to learn and you'll find a lot of resources. Chatgpt also helps a lot, but you have to check really a lot what that AI guy say. It's better to read up the basics and do what ever to get acquainted with the language first.
The are also online websites that let you run code online without having to set-up an IDE.
if you ask me, it's easier to set-up an excel file that imports the contents of the text file (link it) and then, you can query it with Plain Excels formulas. Which is a database or can be seen as a database and actually, it's sufficient more than that for your use case imho
So. Try a few steps with python. Remember. It's pure logic. Nothing magical on that.
You also can go for other languages, but, mostly they're difficult to understand in my opinion. You can try JavaScript, but then you also have to learn the basics of HTML and so on .. when you're at it, you might end in programming a small website.
So check out what you really need.