ThreadPlanning to move to Japan but I don't know if moving like this is a bad idea Up: Update from OP
I've lived in Japan for 3 years now. You DO NOT want to come here unprepared. Japan doesn't fuck around when it comes around to visa processing. Anything you do that is kind of shady or unprepared can seriously harm your ability to get a working visa here in the future. Even as someone with a stable job and 3 years, I still have to re-apply every year to get my visa.
Come visit, see if you like it. GO HOME, learn the language conversationally then apply for jobs and return next year.
Seriously, don't give up your dream. But, seriously give it some thought. Moving here is a big, big life changing thing, you can't wing it.