The New SATs and Math

I took the old SATs in June and scored a 2000, math being my weakest section (650). I will be retaking SATs (the new one) in May 2016 and I’m very worried about the math section, I have read that it’s harder and that will really put me at a disadvantage.
Also, is there any way for me to sufficiently prep for the new SATs, specifically math? :’(