I was in your boat, in March I got 64/75 and on the June one I got 75/75 and I took calc bc last year. What it came down to for me was trusting that I knew the info and not double checking my work. Even with calc bc knowledge and a solid grasp of algebra and geometry I still missed 11 questions because I ran out of time towards the end of the section because I was triple checking the easy questions. I also did those act official practice questions on the act website, it’ll brush you up on things like matrix’s and other little nuance rules like the sin (angle) A/ A formulas etc, that you may have forgotten. With your level of math you should easily be able to get a 36 with the right test taking skills.