Originally Posted by
Ryllharu
Mandarin Chinese is hard (Cantonese is worse). English is hard (the homonyms and homophones get most ESL learners).
Japanese, not unlike most romance languages, has specific grammar rules, and specific forms. You can't just learn Japanese from the vocab, you need to understand the grammar first. That makes the learning easier and faster, as it is dramatically different from English with its utterly rigid sentence structure.
Assassin covered a lot of this already, but it is the method I was learning Latin in high school. From my own experience, if you combine the grammar rules with Rosetta Stone or something similar, it goes much faster.