GMAT Strategy

I have been a silent observer of BTG from the past 3 months.
I completed Manhattan GMAT all the books, did the OG 12 problems.

Took 2 MGMAT tests and a GMAT PREP Test.

MGMAT 1 - Q 45, V 29 - 600
MGMAT 2 - Q 42, V 25 - 560
GMAT Prep-1 - Q 44, V 27 - 590

My target is 620 - 650 and I am planning to take the actual GMAT in December 2nd week.
I am worried because in practice tests if i score 560-590 the actual gmat will be less or around that.

Clearly my weakness is Verbal. I am trying to improve more on Verbal. Any suggestions on how to proceed?

Thanks

which area on verbal r u weak(SC,CR,RC). u need to plan accordingly.
if you feel your basics are not correct, then you need to read grammer books..
make an error log of ur mistakes and analyse ur weakness

My SC, CR and RC are equally bad.
Might be you are correct I need to stress more on Grammar.

Thanks Amar