Failed in April 15th..did over 3000 questions but not luck was always mid 60's for a while

These are most recent scores last 10 days..3 tests  64, 73, 70 in RITA PM Fast Track.. Exam in 18 days. You think I am on right track. Would like to close all the gaps. Shud I do 10 tests in 18 days or read a lot and take a test every 3 days ? That gives me still 5 tests of 200 each. Or just focus on reading PMBOK more and more ?

Need some study plan advice.