Whatever country you may live in, it is only sensible and respectful to learn the language, which obviously makes everyday living easier too.
Swapping lessons in your own language with your new Japanese friend is a good idea. Private tutor is another way if you can afford.
However, joining a class would be more fun and sociable too, especially if it is free. Kominkan is where you can get Japanese language lessons for free and also get to know many people including foreigners who live in your neighborhood.
Japan has number of abandoned or vacant homes, known as "Akiya - 空き家", that has been increasing steadily since late 1970s. It’s a problem that’s set to persist because of an aging and shrinking population that has left many towns and villages empty.
By 2013, vacant homes accounted for 13.52% of total housing and there were calculated to be 8.196 million abandoned houses nationwide, according to latest data by the Ministry of Internal Affairs and Communications.