Probably you have a wrong picture of JS. It is just a scripting language, a syntax with a dozen words and identifiers. But if you use it to program websites or games then all the variables, functions and commands do the difference. This is, what you have to learn. And they will be the same in C# at the end.

The same happens with JS and website programming. JS is not a problem at all, some loops and conditional elements. But then you have to learn how to talk to the elements of a browser, of a website and so on. This is what needs learning.

Don't be so scared of programming languages. They are just the tool, the hammer. The real work will be what you do with this tool.