you seem to have a solid base on English. But better not use such mood to study Gmat, In my view, Gmat not only tests one's English, but peseverence and diligence. SO, Add more pressure to yourself! ^.^
thanks to eveyone! till the end of June it is totally three months for me to study, i don't know if it is enough. and i wonder if somenone else at the begining of studying GMAT met the conditions like me, feel so bad. MBA probably is not my first choice, yet some other majors also need score of GMAT, so I have to.
Singing sister, honestly, I think you problem is concentration. You time is enough, but you need to stay away from other people/things, study in the library or some place your can really focus on GMAT.
Forgive me if I used some strong words. We will be happy to answer your questions.