Feeling Anxious, but looking to beat this Plateau!

I would like to start this off by saying I am VERY grateful for my score, and know that a lot of people would do anything for it, so this should not come across as complaining.

I have plateaued right around 168, and would LOVE to break the 170 threshold before the January test. What have you done to break into the 170's? I know that with just 15 days before I sit, much of the work has already been done, but what could I do to get that final push?