I have been referring to
OG 12th edition, completed it once and redoing it. Also started using
OG- quant review and yet to start with
OG-verbal. Apart from that I used the manhattan guides and currently working on the
Powerscore CR after realizing that my CR is weak. Did the first 3 quant test from gmatclub test, plan to do atleast half of them as they are very good to practice the hard questions. And got enrolled to the knewton online course a couple of days back.
I realize that I am unable to improve my DS especially when it comes to questions which has all variables, then I get confused whether to use negative number, positive number, zero or fractions. In SC, even after going through the Manhattan guide, I am still unable to spot the modifiers and understand the concept behind them. In CR, I do not know which book to refer to, although I have started studying the Powerscore and also completed one CR session of knewton, I do not see any improvements.
So, as a whole I am not able to improve my scores even after putting a lot of efforts n time.