1. Easy way is to come Japan as a student or find someone who has same nationatiry with you and lives in Japan. I think they have more info than me.
2. Olympics may would be the last flower of Japan like fireworks. Japanese has tons of problems to host the worldwide festival, both in the finantial and political proces. People hope that the event evoke Japan great again but it is clear there are too much problems. I hope we can see in 2020. There is a joke the famous S.F. manga "AKIRA" predicts tokyo 2020. It may come true.
3. Now government push "Cool Japan" to get a sightseeners but still mass media often find otakus as a pre-criminals and bashing them socially. However, the impression of otaku totally had changed in compare with 30 years ago. It means more positive and creative. It has both sides.
Hmm, I see. Well I do have a friend in Japan from my country, she is studying in a Japanese High School to become a pilot. So I guess I should see with her one day when she goes into College.
Anyway, thank you for all the answers :)