Multiple ways of going about this:
Look at the study design, it is super messy for math and makes about 0 sense but does give a general indication.
Each school does it differently, but In my opinion do the chapters in order 1 and 2 and 3, do chapter 4, 5, 6,7(optional) 13,14 (this stuff kinda comes up in the next topic of calc), 15,16,17,18,19,20,21, 9, 10, 11 (ignore the revision chapters).
So as u can see, the text book is pretty much in order, the probability and stats stuff do whenever but for the most part, the order of the chapter is good. Although, without a methods teacher and with other subjects, some of the stuff in here will be very hard unless u r like really good at math (I am rank one in cohort but yet to really listen to my teacher, may have to start tho chap 13 is hard
)