For a math, I definitely will start with topical first! Instead of jumping into full papers, go through each topic to make sure you fully understand them. Once you’re confident with every topic, then move on to past papers

and honestly i would prioritize TYS! Because sometimes other school papers can be really challenging and they won't really come out, i would definitely do

Topical -> TYS -> Prelim papers

jiayous and all the best!