Help with CR+ Writing

<p>I took a practice SAT test and I got a 51 in CR and a 51 in writing. I am going to take the SAT in March. Any tips on how I can improve my CR and writing score in 1 month??
After I take the math sections I will update.
Thanks</p>

<p>For Writing I used The Ultimate Guide to SAT Grammar by Erica Meltzer. Really helped me understand key grammar rules.
For Vocabulary I used Barron’s High Frequency and Hot Prospect lists + The Essential 300 Words (eBook). I got 19 of 19 SCs on the Jan SAT!!</p>

<p>for the math section I got a 520.</p>