I was always pretty good at languages, since I have a very strong rote memory and I'm good at repeating what I hear. To date, I've studied Spanish, French, Japanese, Korean, and Mandarin Chinese. I always really liked my language classes and excelled at them... they were the only classes that I was pretty much guaranteed an A in. I've been told that I'm near genius level when it comes to language learning. That said, I still struggle with some of the nuances. Good pronunciation and good memorization skills aren't everything. Knowing when and how to use certain words or phrases is equally important. And sometimes that is more difficult that it sounds.
Anyhow, though, if you like languages, study them. Knowing more than one language is always a bonus. If you really get into them, you could always make it your field of study... for example, you could study linguistics. For me, though, I just liked learning languages, not necessarily studying the grammar or syntax in nitty gritty detail.
What I also want to point out though....particularly for someone with AS or social difficulties, language classes can provide a valuable opportunity to further develop conversation and other social skills, albeit in a foreign language. Everyone is on more or less equal footing and everyone is going to sound awkward. You have an opportunity to study about a culture through its use of gesture and speech patterns. I suspect that that may have been a major reason as to why I enjoyed them so much. I got to learn about people's customs and ways of doing things in a structured environment. Stuff that always seemed a bit foreign to me, perhaps more so than even the language side. In turn, this helped me learn how to interact with people better.
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I don't suffer from insanity. I enjoy every minute of it.