Take lessons from teachers. A teacher can correct your grammar and pronunciation mistakes. When you watch a movie (in English), write down any words you may not know. Take these words (and phrases) to a teacher and ask him/her what it means. You can look up a word in a dictionary, but often times there are more than one definitions to the same word. This will expand your vocabulary. I hope this helps! :)

I think , its a long process to learn a language . You must study every day for a constant minimum time (a bit every day) , and try to learn four skills step by step . You must study enough to get abilities to read , write , speak and listen(comprehension) . Finally , the media and native or advanced speakers can help you .

The most important thing when learning a language is to gather up the courage to speak it. Practice your oral English, you can listen to music in English, listen to the radio and repeat what you hear. Other ways include chatting with English speakers. Even reading out aloud helps