Hi
kreel11,
I think the best approach at this time would be to stick to everything official!
Start by revising
the Official Guide, specifically the
OG-2018 if you can get your hands on one.
If you have already purchased the GMATPrep and exhausted all your re-takes you might want
to invest in the Question Pack1(which contains 400+ questions in all the sub-sections combined).
Try and analyze your mistakes made in the GMATPrep tests and work on all your weak areas.
Also, make it a point to do at least 4 RC passages everyday.
Experts Global mocks help in understanding what your weakness are, but if I were you,
I wouldn't delve too much on the scores. The algorithm is not great and the questions
are not adaptive.Once you take a test and understand what your weaknesses are, do some
practice specific to that weakness and make sure, those mistakes do not repeat in the tests
that follow.
Hope that helps you!