Cant improve in CR

Overposted subject I know…
Objective:Im going to take SAT June 6 and I want to score a 660 or more.
What I’m doing: Im reading a lot, Chronicles of Narnia,The Great Gatsby and Many newspaper.Using flashcards.Reading a lot of strategies and trying to apply them.Taking sections weekly.
Situation:So,in the last non-timed test ,BB,I managed to score 560 in CR .Missed only 5 SC.
What is the recommended path I should follow to achieve my objective?

Same problem. Need help!