Everything I need to know about moving to japan?

It's a hard question to answer without specifics. It all depends on how long you're staying and if you'll be studying or working there. Moving to a different country is not easy and if you're already confused it doesn't seem like a good idea. I am only saying this because before moving abroad you should do a lot of research and learn to find information on your own as much as possible. It'll make your life less stressful if you're informed about things before you go. If you go online you can find many blogs and websites with useful info. of people who have lived or currently live in Japan that are from other countries. You can also try youtube many people make vlogs of living abroad too.