There's a lot more to learn with English than just the textbook styles that you have been taught.
There's so much more.
And once you get a handle on how to use idioms, colloquial speech, and slang within the English language, only then English becomes more expressive. It becomes more powerful for you to use. And actually you become a happier English second language user.
Find out how easy it is to speak all parts of the English language!