Indeed to all of the above...
...Gra, good work for self testing yourself; this will help a lot, I'm sure.

I studied those questions for about 2 or three evenings per week over the space of about two months. It helped me to have them sink in over time and it could work for you too. Forcing anything into your head too quickly will simply result in a high loss of that information.

As you may remember, on my first day of exams I got one score of 87 and another of 88. I could remember the questions that I wasn't sure of and so that night I spend another hour or so revising those. The next day I got 93!
Between the three exams that I took, I could have sworn that about 70% of the questions were repeated in each.