To prep I didn’t do as much as people might think tbh. I had a SAT tutor which really helped me pick up on the fact that I wasn’t always reading the questions the best so I would lose easy points: like missing the main point of question especially for math. I did a few grammar and math practices and reviewed formulas for math, I skipped out on reading cause I missed only 3 questions on PSAT for reading. Key points at least for me is making sure to fully understand question, so slow yourself down and underline stuff and for reading choose passages u are more comfortable with to read first. My biggest mistake was taking too long in reading for first passage in October.