Hello Afraa,
Do not worry. I was also concerned about my 1st two mock tests couple of weeks ago. Was scoring around 63/64. Now I have improved to 70s (have took 5 tests) and hoping to improve before my exam next week. See this post.
www.project-management-prepcast.com/kune...pm-prepcast-mocktest
Rather than writing everything for you to go through, I would suggest you to spend time and analyse options "why" and "why not".
You may just write down key concepts that you feel you will forget. Would help you. It is still up to you which style you want to follow.