SAT practice tests

Hello all. I took the SAT in June and got a 990. I wasn’t really happy with my score. Then summer went by and I was pretty busy so I didn’t study much or thought about when to take the SAT again. So since September I started studying again and registered for the November SAT. I took two practice tests so far and I got a 1010 on the first one and 1050 on the second one. My goal is 1100-1200 but 1100 might be more reasonable. Is it possible to go from a 1050 to 1200 in about 3 weeks? Some of my friends have made impressive jumps in that much time. What should I do now? Take a couple more practice test on Khan Academy or look into the blue book? Thanks!

Subtle.