Ring12, I recently took my first practice test and I got a 13 on RC. I tried Vicviper's strategy for reading and it worked the best for me so far. Imanm proposed a strategy, try working that out. Its all about what works best for you. Also, try to stay calm while taking the test specially when it come down to the RC section. Whichever strategy you use, your goal should be to answer the question rather to grasp knowledge out of the passage.
Good Luck!
If some strategy works really good for you, please let me know. It might be helpful to me as well.