Part C of your areas of improvement is incomplete. It's not just a matter of practice for verbal. You truly need to put forth a great deal of effort in order to cover and fully understand all of the concepts for verbal. But it seems that you already know this, given the books that you included in your preparation. The
Powerscore CR Bible and Manhattan SC guide are essential. There are mixed reviews on the
Manhattan RC guide, but it's still acceptable. I wouldn't bother purchasing another CR or SC book. If the concepts still trouble you, then re-read the books just mentioned. There is no need to spend more money on another book on the same topic.
For problem practice with verbal, start with the
OG material. After that, some LSAT RC passages are pretty reliable. And make sure to fully read all of the explanations, even for the ones that you answer correctly. But most important of all:
DON'T UNDERESTIMATE THE VERBAL SECTION! Many simply assume that a few weeks of reasonable effort will do the trick. Unfortunately, that's not the case. Verbal is your weak spot, so treat it seriously. The verbal section is where you will make (or not make) your target score.
Your quant is quite strong, so while further preparation is encouraged, don't let it take over the time needed for verbal. For quant, the best sources include the Manhattan math series, the
OG books, and the
GMATClub tests.
For AWA, read Chineseburned's
post. That's the best place to start.