Hey, glad to hear you've made a choice.
About having to have 'extreme skills in one language': A lot of programming languages are really similar, especially Object Oriented Programming Languages like Javascript, Java, Objective C, C#, Kinda C++, Python, Ruby, and many others.
Once you learn one of them fairly well, it becomes pretty easy to learn the others.
Don't get caught up on becoming really good at a specific language though because trends change all the time, and a language and framework that was relevant today might become obsolete tomorrow.
Just learn what you find interesting and go with the flow!