You start digesting the Japanese language any way you can, studying books, watching movies, and making Japanese friends. You decide that you enjoy studying Japanese so much that you keep at it for years just to see how far you can go with it. Your boredom has faded years later and now all of a sudden you find your self in Japan and hear a woman in Japanese say help, its time to put your Japanese to the test and see what you can do.
You realise she`s actually Chinese. Learn Mandarin instead.