Need suggestions

These are my scores right now. But I feel very much less confidence in R&W I feel like I get confused in the actual exam (I've give the SAT once). Can someone provide me with everything that's important for R&W like grammar rules everything???? I have my exam on March 8 and I'm scared out of my minddd😭

These are my scores right now. But I feel very much less confidence in R&W I feel like I get confused in the actual exam (I've give the SAT once). Can someone provide me with everything that's important for R&W like grammar rules everything???? I have my exam on March 8 and I'm scared out of my minddd😭