Dear Isha get a Note book, start reading Wall Street Journal http://wsj.comWhen you read a word, note it down in the note book with Blur Marker, also note down the sentence of Journal in which it was used so that you know the context in which it has been used in Blue pointer, also give the dictionary description of that word in black pointer...now review these words whenever you get some time. Then you also use these newly learnt words in your text, here on forum as well.....The more you will use those words, the more they will congeal in your mind....You must also learn the words with their contexts, in that way these are yours for life...as you can't cram the words...
Dear i can give you guys a specific time after Ramadan, and as you are aspiring for 2015 exam so you have ample time, don't worry things will get better...Have faith in Allah almighty and yourself.

For now i would suggest you to start from Basic grammatical concepts, get a basic grammar and learn the parts of speech i-e Noun, Verb and Prepositions etc.....Get to know their functions and role in a sentence syntax, then i will tell you what to do next.

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Ever has it been that love knows not its own depth until the hour of separation.
But when love is one sided, holding off is no more an option.