RC help

I have about 20 days for my test and took test 6 on BootCamp. My RC score was 19. I am just really worried about the RC on the real test. I know people say it's harder. I have kind of been ranging from 19 to 21. (I do better on booster). I am just really worried. Is there any advice I can get? I have been reading scientific articles like people mentioned. I don't know I am kind of panicking and worried. Please help! AL

Also, my strategy is to read the question first, read the passage till I find the answer, and then continue. Also, use search and destroy depending on the question or passage style! Also this is my second time taking the test fisr time I got 20 on RC