How to improve in three weeks

Hey guys,

I’m taking the SAT in December (so in three weeks) and I’ve been preparing for it really hard. I am aiming for a 2300+ to compensate for my slightly lower GPA. Math is generally “hit or miss” and I’ve been getting scores that range from 760-800. Writing is where I need the most help in (650-680, assuming a 9 on the essay), but it is also the section that I put the least amount of time into, so I’m still not too worried and I am confident that I can bring my score up. However, I spent the most time on Critical Reading, and I barely improved (started at a 710, now I’m at 720-730). I still keep getting 4-5 wrong on each test.

Do any of you have any tips and study techniques (not just for CR, but that’s the section that i am the most worried about) that I could practice/use to raise my score in three weeks?

Thanks for all your help