The first thing to do is to take at least one week off from any GMAT study. You probably studied for a while, so you deserve and need a break.
During this time, I also advise you to read the content in the following links: should-i-retake-gmat-thread-retaking-gmat-strategies-83339.htmlbest-gmat-verbal-prep-books-reviews-recommendations-78094.html?highlight=ml308
As sandeep800 suggested, look into Manhattan SC and Powerscore CR
. Those are the most popular books for verbal. If you need extra help in RC, I encourage you to practice with LSAT RC
questions. For some, an RC guide is also recommended. Options include Powerscore RC
or Manhattan RC
. However, RC guides are usually not necessary.
If you have a little extra time, also consider some GMAT Fiction
. This is an enjoyable way to improve your RC and SC skills.