I recommend that you limit your study of the history to a simple time-line. Write some Haiku poetry. Try to write your own. MATH Learn to use an Abacus. This is very important because the abacus is still used today in spite of the development of the calculator.
Common people prefer the abacus and can use it as quickly as a calculator.
Study Bonsai gardening. See if you can visit someone who does this. How the common people view it. It was really good. Cook Japanese food and sit on floor to eat.