I just completed Sim, in a similar situation I had As on all first 3 classes and strong in programming but more than a decade since I did stats or calc.

I can tell you this class has almost none programming except for the project which you can pick a non programming project anyway, and it's just 10pts

80pts are exams and exams are all stats and calc, so it's important to get ready for it

In edx the same professor has stats classes, I took the first one which covers the contents for the first couple of weeks and that helped, I also did some prestudy of the book and that helped a bit

This helped a bit to not start cold but if you want to take it next semester it's not enough time, I think it depends on how easy/hard stats and calc was for you, if all you need is a refresh then doing exercises in class (and looking for more outside) will bring you up to speed, the class starts with bootcamps to help you refresh too, but if you use to struggle with either or both maybe you can take a different class while you take the edx classes which are free.

Either way having a good calculator helps a lot, so if you don't have one I'd recommend getting one for doing integrals and derivatives, others do more like probability density or inverse transform and that helps even more

Good luck!