Just my two cents, but I think that after only 11 months (less than a year) of studying Japanese, it's unlikely that your "listening skills" are the problem. Rather, the main reason you're not able to catch 100% of what people are saying is probably because they're using a whole bunch of words -- and even more importantly, grammatical constructions -- that you haven't learned yet.
Using Skype and the like to talk to native speakers, as well as watching TV and listening to music and such can be invaluable for getting your ear used to the sounds of Japanese, as well as reinforcing what you've already learned. But keep in mind that (at this point, at least), you still have a lot to learn about the language before you can reasonably expect yourself to be able to understand the Japanese of native speakers... whether it's spoken or written.