Hey
CL111First off, Welcome to GMATClub
You seem to be doing well with your preparation. IMO, the first step
must be to analyze the kaplan mock and work on your weak areas.
Since you are planning to take the GMATPrep around 10 days later,
you could go through the
LINK and GMATNinja's SC Videos on Youtube
to strengthen your concepts in SC. Once you take the GMATPrep test
you should report with your individual percentiles to get better guidance.
As you are comfortable with the Quant concepts, if there are a few
topics where you make your mistakes, you could go through the
Quantitative Mega-Thread to revise your concepts in that particular
area. You could practice Quant questions from link number 2 and 3.
Some links you might find handy
1.GMATClub Quantitative Mega-Thread2.PS Directory by Topic and Difficulty3.DS Directory by Topic and DifficultyHope this information helps you!