Hi! Remember, learning a new language or a language that is foreign to you can be tested by your ability to perform in that language, and if there is a problem with the language, then there are a million ways you can try to improve it.
You could try reading an English newspaper everyday.
You could try reading small English books written in simple English, and gradually progress to tougher books. Reading is one of the best ways in which to acquire language skills, and the more you read, the better your vocabulary will become.
Perhaps, you could try maintaining a diary in which you note down points of interest to you, everyday.
You could try speaking to those people you come into contact with everyday, in the English language.
Or, you could try looking for sites that offer quizzes and other learning material for children, like for example:
www.internet4classrooms.com
Such sites would be very useful in improving vocabulary and grammar skills in English.