Hello,
It's great that you want to learn a language. Here's my advice. Don't believe all the naysayers and people who say Japanese is hard, or that it's impossible to learn.
Step 1. Change your environment to become Japanese
Basically, change everything that you can to japanese. So for example, when I was learning Japanese , I changed my operating system (windows to Japanese), change the language settings of your phone to Japanese.
In your spare time, only watch native Japanese media without subtitles. If you're getting your anime hardsubbed, when you watch it , just open another window and block the subtitles on the bottom.
Step 2. Get this book :
http://www.amazon.com/Remembering-Kanji-Complete-Japanese-Characters/dp/4889960759This is the book that will make you know the kanji .
Also, I got most of these tips from :
http://www.alljapaneseallthetime.com/blog/how-to-use-this-websiteAlso, another person I used to help me learn language are :
http://www.fluentin3months.com/Also, you could probably google it , but Tim Ferris has some good techniques too.
But I highly recommend you read
http://www.alljapaneseallthetime.com/blog/how-to-use-this-website.
Hope this helps! Ganbatte!