Multiple Versions?

Has anyone taken it more than once? Or in my case more than 3 times? Every time I go back to study for what my problem areas were the previous time I get hit with even harder areas I didn’t foresee and the practice tests really only helped me the first time I took it with similar questions. All other times the phrasing/format was similar but intensely more challenging concepts and questions. I need to score high to get into the CC that’s highly competitive and unfortunately am struggling to beat an 85%.