The Japans were => the JAPANESE were
When he came it with home => when he came HOME WITH IT
when I turn off the light sleeps => what do you mean? Do you mean "when I turn off the light and sleep"? It's grammatically wrong. Revise it to make yourself clearer.
Generally, there are no big gramatical mistakes, but the thing is that you should use a little more complex structures by connecting two sentences with words like "and", "but", "then", "after that",... to make the story more interesting. Also, add an intro to the writing. (and I was wondering what the purpose of this essay is?)