It really, really depends on two things: where do you leave, in what environment, with what opportunities, and what leaves in your head. In other words, you should know better what to do.
I can imagine that you don't know exactly. That would be pretty usual thing. Then get ready to try out many different things (but try seriously), fail and start again. "Seriously" is the key. You should not be afraid not of learning the language, choosing right or wrong one. You should be afraid of becoming a Tiger from Winnie-the-Pooh. This generally wonderful guy thought he liked all kinds of food "except"… something, and threw out everything he tried shortly, until Kenga found him some fish oil. Remember, in real life you may never meet such Kenga who can introduce you to your fish oil.
Now, one more important thing: this days, knowing only one language, or only one platform, or only one something, is almost equivalent to knowing nothing at all. In addition to the languages, you need to learn technology, both coupled with this language and not. Effectively, setting aside just the minority of some lucky people, if you don't know several languages and technologies pretty well, you are good for nothing. Moreover, in my strong opinion, knowing just one language nearly always means knowings even this language very poorly. Things can be properly seen only at some distance. You should develop the skill of looking at your language as a part of bigger picture, only then you can say you know that one. And you cannot develop understanding of this bigger picture, unless you know few more languages and technologies. And, importantly, theory: some mathematics, computer science, and not at the level of passing some stupid school tests, but at the level with the skills of being productive in working with these theories, being able to cast them into working machinery, with real qualities.
—SA
Updated 19-Feb-15 10:53am
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