There are many ways of learning a foreign language. How about singing a song in the language of your study? It might be easier to study Japanese this way than learning from the book. I would like to share a story of Nicholas Edwards who has now become such a famous pop singer in Japan.

http://www.youtube.com/watch?v=4b8Az_UMfZc

Nicholas is originally from Portland, Oregon. He studied Japanese while he was in high school.  Learning lyrics of Japanese songs and actually singing them was one of the ways that he used to learn Japanese.

He is now a pop singer in Japan. Below are some of the highlights from his blog site regarding how he learned Japanese by singing songs.

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オレゴンの家に、まだ何千枚の単語カード残っていると思うよ。笑
今となれば、日本語が話せなかった時のことをあまり思い出せないけど

(I think there are still thousands of Japanese vocabulary cards left at my house in Oregon. I can’t remember much about those days when I couldn’t speak Japanese any more.)

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当時（高校生）の趣味は好きな（日本の）歌の歌詞カードを手にその歌を繰り返して聴くことでした。分からない単語をノートに書き落として、暗記して行きながらひたすら聴く。気づけば朝の3時だったりして、僕は日本語の世界に夢中でした。

(Back then when I was a high school student, my hobby was to listen to Japanese songs over and over with the lyrics on my hand. I wrote down the words I didn’t know and kept on listening to songs by memorizing the words. By the time I knew it, it was often 3 in the morning. I was so into the world of learning Japanese.)

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~all from his web site: http://ameblo.jp/0nyk0/entry-11093197638.html

http://www.youtube.com/watch?v=Wp1a5Tst8eU

If you like singing, how about try singing some Japanese songs like him? It might give you a different experience of learning Japanese!

You can read more about Nicholas Edwards here including his bio, and how he has become a pop singer in Japan.

If he can do it, I think you can also accomplish the goal of learning Japanese.  As long as you put your mind into it, you can achieve anything!  Good luck on learning Japanese and keep up with your hard work!