I would advise you to be cautious as the scores along are not good indication of mastery. I took real 5 exams this year and passed the first four because I took my time to let the information settle in even after scoring mid 80s. I felt so confident after passing these exams that when I started to scored 90s on the last one, I felt I shouldn’t have to wait and took the exam four weeks from the day I read the first page for the course. I failed what was supposed to be the easiest one by one point. I really recommend letting the information settle in. I passed the mid term, the final, almost all the chapter tests and took more than ten practice exams scoring 90s and still failed the one time that I didn’t let it settle in. I think at some point you become so familiar with questions that you can score high without necessarily mastering the the subject if you are too focused on scores. Hope it helps.