I really appreciate the feedback! This is good to know. I'm going to pull the Japanese because it's been giving me too many problems. I won't give up on it entirely but for now it's going on the back burner. Luckily I haven't been having the same problems with any other languages.
These kinds of games are meant to be explored and discovered by yourself so I don't want to give too much away. My recommendation is to make the game whatever you want it to be. The language learning tools will all be there by the first 20 - 30 minutes or so. You haven't gotten to that point yet :)