That you can't buy a round-trip ticket, then conveniently forget to return on it?

Because the round-trip tickets are half the price of the one-way tickets to Japan. Any sort of travel advice for dealing with these sorts of situations?

我应该多读中文可是我想我近来真的太混了。

我买新家了。我去日本了。以后那我还是不读书的很多。可是现在也许我读中文一些。我不知道我要再日本读中文。

现在我有问题。我还是不明白。