You said you've "learned" Javascript. Perhaps you've passed a test. I doubt you've really mastered it or understood how it works under the hood. I'm not saying this to insult you. I only say that because I've been doing it for 20+ years, and all of us, everyone, could probably spend ten more years learning to write even better code.

On the other hand, new programming languages increase your understanding of some ways of doing things. You learn other kinds of syntax. You grok more.

I guess I'd ask myself: What's the point? What do I want to learn Python to do or to make? Why Python specifically? Why not C++? Why not PHP? Why not just take those Javascript skills and learn to write NodeJS servers, which are a whole different beast from your front-end Javascript, and which can accomplish most of the same things as other back-end languages?

I'm asking because, if you don't have a real reason to learn a language, it will just be something you learned that you never use. If you do have a real reason to learn it, you'll probably learn it because you need to. If you can't learn it by trial and error, without taking another class, then you haven't learned enough Javascript yet. All languages lead to each other, and all the information about them is available for free.

Think about what you want your career to be. Do you want to be a full-stack developer? Then Python + JS probably isn't the best choice at this point. Do you want to tinker with AI models? Learn Python because for now it's the go-to language. Do you want work on games? Learn C++ and NodeJS. Do you want a steady job in the retail sector? PHP.

If you just want to be a colossal prick you can write everything in Brainfuck.