However, and many English learners have had to face this truth, just studying English is
not enough. You have to actually practice it in the real
world. You have to use it, learn
from your mistakes and gain
(By the way, spoken English can be quite different from written English. You can read about it here: Learn Spoken English)
So how do you do that? Do you move to an English speaking country?
Well, if you can, that might be the best option. If not, there are
other things you can do.