Did you ended up getting any books? MGMAT books
are must have. Since you are planning to re-take the GMAT pretty soon, you should at least complete 8 MGMAT guides
and OG problems that are listed in MGMAT guides
. If you go through MGMAT guides
, and do all listed OG problems, you will complete every single OG problem from 12th edition, 2nd edition quantitative, and 2nd edition verbal.
It is better to concentrate on a few good books rather than trying to complete and cram as many books as you can.
If you learn to do things that you need to do - then someday - you can do things that you want to do.