Xoce, if you really want to learn Arabic you can learn it here. I'm assuming you're from the U.S.
Other than the obvious fact that you'll be living in this hellhole of a country, why would you learn one of the least desirable Arabic dialects?
I'm not too sure the Gulf dialect is in demand. You won't learn Arabic in a year.
First of all, you would have to learn Modern Standard Arabic first before you study any dialects. Modern Standard Arabic (MSA) is the language of media, literature, and other writings (which btw, no common people communicate in). This would take much longer than a year. This is before you even get into the dialect. This is very long road your taking.....