Please see my corrections to your post above.
My main advice is to listen, listen, listen! Find an English-speaking radio station and play it at every opportunity. Have the radio on in the background whenever you are at home. Don't actively listen to it, just allow yourself to be immersed in the sound of the language. Try watching videos on TED - you can watch them first without subtitles to see how much you understand and then you can switch on the subtitles for some help. Watch English TV shows and films (but always remember that the spoken English is not necessarily grammatical).
The best thing you can do is find a native speaker to practise with. Advertise locally and see if there is someone who is interested in a language swap where you meet for an hour, speak English for half an hour and then speak your native language for half an hour, so that the other person can practise your language.
Student or Learner