hey,
I see that you have taken a lot of material to study, quality study is required and not quantity only. don't give it in a hurry, give it when you feel confidence in your preperation and when you are at the peak of preperation, do not delay. give your self time to prepare. since you want to score good in maths, just practice it a lot, with timemanagement in mind, but do keep up with verbal also as a low score might hamper your overall score.
the material you are using is fine, just get hold of some simulated tests.
Good Luck!!