If you're searching how to improve SAT score in 30 days, I really think the fastest gains come from being super selective, not doing everything. My best tip is to split the month into 3 priorities:
- Days 1-10: find your worst question types and drill only those.
- Days 11-20: do timed sections, then spend longer reviewing than testing.
- Days 21-30: take 2-3 full practice tests and fix repeat mistakes, not random ones.
Also, keep a tiny error log. Mine was just: question type, why I got it wrong, and the clue I missed. That helped way more than grinding extra problems.
For math, memorize the formulas you actually forget. For reading/writing, slow down enough to prove your answer from the text instead of going by vibe.