http://entrenainc.com/images/pdf/Program_Information.pdf
While learning on the internet may work for some, the OP may need some one to one teaching as well.
It is certainly a good investment as language fluency makes all the difference between feeling comfortable here or feeling like a frightened alien.
Language schools are expensive here. I studied in both Mexico and Guatemala, which are cheaper. But then when I came here, I could not understand a word of what they were saying for about a year!
The other thing to do, if you have SOME Spanish is to watch telenovelas.. And to watch US movies with Spanish subtitles. Many of the TV shows here have Spanish subtitles.
I have pretty bad hearing loss.. 70% in one ear, 30% in another, the result of a small squid from Las Terrenas who loved me to much that he tried to take up residence in my ear canal along with his 7 or 8 grains of sand.. I thought it was just swimmers' ear and so did not go the hospital for two weeks, just kept trying to flush out the ear. Anyway, I have found that I have come to depend on the Spanish subtitles as I often miss words in the TV broadcast.
I first started with kids cartoons but I have no interest in kids' cartoons, even in English. Law and Order works better for me.
But the investment in a month or even two week course at Entrena, followed by private tutoring as your pocket allows, will really improve your enjoyment of living here.