<p>One month is probably not enough to get a 2200 on the SAT. Take a practice test to see what you are working on now, and then we can perhaps tell you what would best to do next. </p>
<p>FYI, if you are applying to further education in the U.S. especially the Ivy League and other top universities, do not write your grades as GPA. They are already familiar with GCSEs and GCEs. 10 A/A* at GCSE are far more impressive than a 3.8–4.0 GPA.</p>