I need to raise a 510! D: I need a rigorous study plan! How did you raise your HORRENDOUS Critical Reading score?
Read The Critical Reader by Erica Meltzer. Do a lot of practice tests using college board materials. Make sure you do a thorough review of each section.
Do practice test on college board website and go to your library and pick up some books related to the SAT, also read on your spare time and take notes on what you are reading, really get the feel of what the story is about.