Honest answer: JS is a shitty language and I despise it. BUT you can learn a ton of stuff with that, all the features (loops, conditions, variables, etc.) that exist in other languages. You will hate JS one day too, but right now it's good to learn, and when you'll switch to other languages, you'll be happy you learned something.

So yes, JS sucks, but no, it won't be useless for your future. Keep on working, programming is really fun.