To get a success, all you need to do is to practice listening,speaking,reading,writing
for reading - start reading english newspapers,books,articles etc.
for writing - choose any topic of your own and start writing about that topic which you chose.If you will not able to think the topic, then search any topic on internet and start writing.Please note start improving ur vocabulary.Buy pocket dictionary and put it in ur pocket always.Whenever u will get free time just take it out and learn some words.
for listening - start listening news channel like bbc, watching movies.
for speaking - start talking in english with any human and remember one thing dont hesitate to speak if u will do mistake ,no problem.Try again.U will get success.
"Practice makes the man perfect"
Cheers,
coolguy001