I agree with most everything @CaliMax says except for the attempt to minimize the SSAT score. If you want to compete at the most selective NE schools, you really need to be the full package unless you are a highly recruited athlete or have some incredible hook. If you can study 2-3 hours a day for three weeks and get your scores in the mid 90s, I think that’s a good use of your time. I mean, if nothing else, why settle for something less than you’re capable of achieving? You’re clearly capable of doing better since you didn’t study the first time.
Best of luck. I think you will be in great shape this time next year.