First of all, you need to learn the vocabulary words and highlighted widespread turnover of speech and expression.
The Americans treated 2000-4000 words, the British approximately 5000.
Then go to the English-speaking forums or acquaintances - creating a Friends of communication and correspondence.
You can even video conference and hold chats with friends, in the process of communication.
And so, gradually, you can learn everything, even a live chat in English.
All the best. Good luck.