hi @andyluy! Have you ever heard about "NHK world" website form Japanese TV shows? My friends learning Japanese language and about Jpns culture from this website and theirs some apps too... I think it'll somehow help you about your planning to come to Jpn. I feels sorry about your money problem... I also tried to stay Germany over 3 month a few years ago with student Visa with showing my savings... But I can imagine Japanese visa is more difficult to get for everyone... wish your luck for cryptocurrency... cheers!