Don't want to put down your love for Japanese, but you can't teach yourself Japanese with any kind of software, I don't care what the box says. Even books. Especially watching anime. Just not gonna happen. The only way to become anything close to decent in the language is to use it daily with fluent speakers who are able to correct and teach you. And I do have experience behind this statement.
I'll be starting my 4th year as a Japanese major at the University of Pittsburgh and will be going to school in Kobe, Japan for the entire school year. I've spent the last three years practicing (speaking out loud) conversations for 3+ hours a day for homework, then having class where no English is allowed for another 2 hours a day. Constant practice and review of correct pronunciation and the rules is the only way the language will sink in. So either take classes or don't even bother.
Also, watching a lot of anime and movies is not even an arguement. It will not help. 100% of the kids I've known who took Japanese so they could understand anime have dropped out within a year. It's not easy, and learning it correctly on your own is impossible.