Regarding quants, I really don't know. Being an engineering student, the level of math tested on the GRE is almost burned into my bones. This does not mean that I don't make mistakes. On the day before my GRE, I got 3 out of 10 quants questions wrong. Nice way to stay confident, right?
So, all I can say is that you should try to master the application of mathematical principles. As 9 out of 10 test-takers will agree, the GRE really does not test acutal math to a great extent. The test-makers simply want to see if you have understood the concepts and their implications. In the remaining days, just concentrate on identifying and avoiding errors. For instance, I always made the error of mixing up the radius and the diameter of a circle in forumlas.
For Verbal, what you are doing right now is OK. Don't try and learn any new wordlists at least. If you come across some new words in PP or BB, learn them, but nothing else should be necessary.
Good luck for your test.