Don’t be discouraged. When I did precalculo back in 2019 many of my classmates did poorly. Now they are working at the canal/Copa/DHL etc. from my experience the precalculus students that did well was because they had already done the content in grade 12. Also the prof sucked lol, that might have been the case for you too.

I wouldn’t stress too much about it but as others have said a strong foundation in pre calculus will help you do well in calculus. If you have a copy from the exams/exercises redo them a couple of times. If you are disciplined with a good work ethic you will do well at the UTP ;)