For Listening part I would suggest watch english News Channnels like BBC, CNN ....
For Reading and Writing Part - Read English Newspaper (Editorial and Front page) because that's there you get to see proper sentence constructions in all the tenses (past, present, future) in various forms.
Speaking - To get the confidence to speak when facing someone. Think of anything on which you can talk for 2-3 mins non stop and do that in front of a mirror and keeping looking at your face expressions, body movements ...it will make your comfortable psychologically !!!