Someone said if I want to speak English well, I have to train my Brain to Think
in English. It's so hard. Did anyone have such experience?

when see the book, you said; this is a book. andthe book maybe answer you that I am not only a bookbut the better one in the world.

grammar

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The more you read, the more terms of use will be transformed into English mode. It’s personal experience and kind of experiment. But it will take you sometime to switch you mode based on the reading some more books. Good luck.

me too, so how to improve, you can practice listeninand speaking more, i am also trying!