Do not be discouraged. You are improving here , i failed twice with worse results and thanks to God i passed the third exam with ( Above Target ) in all domains , so here what i did it may help.
* I studied from Rita book 9th Edition , in Rita book there is a questions around 20 to 37 questions after each chapter i use to solve them after reading each chapter or Knowledge area , also i took Learning Quiz from Prep Cast simulation ( around 20 questions ) after reading each chapter or knowledge area.
* After i finished reading and studying the full Rita book i started taking 200q Mock exam , the first i had 71% second 74% third 75.5% then i went for the Real exam but after each exam and learning quiz i review the wrong answers and check why its wrong and confirm understanding the correct one.
Honestly i found PrepCast simulation so close to the real exam i felt so comfortable while taking the real exam .