You've got a couple of wrong kanji in there: １
級日本語
能力試験. 能 is のう, not の (野).
I think Japanese movies and shows with Japanese subtitles are good for ear-training, because you get to see what they're actually saying so that if you mishear something you have something to fall back on. When you feel like you're starting to get the readings and all down, take away the subtitles. You could also quiz yourself by getting a sentence you think you can handle, listening to it while reading the subtitles, and then repeating it to yourself until you remember it. Then try going back and listening without the subtitles. I wouldn't suggest doing that all the time, but it certainly helps. The only problem with this is that Japanese shows with Japanese subtitles can be hard to find (Chinese, on the other hand, is much easier to study with this method. They subtitle everything).
Of course don't forget to continue studying the kanji, grammar, and vocab (you almost have to if you're going to be using real Japanese). That probably goes without saying, but hearing it one more time won't hurt.
Oh, if you enjoy the news or can at least take it without being bored to death, try
ANN News from Asahi TV. They do a good job of making the script match the announcers, so you can check your listening with it.
