Worth it to take a SAT review course? In pretty bad need of some guidance.

So I took the SAT for the 2nd time in June and now I have a 2150 superscored. I’m pretty disappointed and since I’m a junior (basically senior now) that is planning to ED to some schools, the October SAT is my last chance. My scores are 780 CR, 690 M, and 680 W. I’m especially disappointed in my Math score. I got an 800 on the SAT II for Math II with no prior test prep so I don’t think I’m necessarily bad at math. I know that SAT math is very tricky but I still cannot figure it out. Is it worth it to take a summer prep course? The problem is I’m incredibly lazy and would really like some structured studying to do. I was looking at the Princeton Review Ultimate course and was wondering if it was worth it. It has a 200 point increase guarantee or money back, so I could leave it with a 2350. I also believe that is perfectly feasible - I believe that I could get an 800 on math.

I’ve heard negative reviews for Princeton Review, so I would look into some other SAT programs before you settle for PR. Do some research, and I’m sure you can find a good program for summer prep. There are a lot of options out there and there’s something different for everyone! Best of luck!