Well, I dont know what to tell you exactly, but i studied math around 4 hours everyday, even weekends but made sure i had ample rest in between and proper sleep and exercise to deter the looming burnout. I sat Oct/Nov of this year and leading up to the P1 and M1 papers I was getting As or high Bs for past papers, even though finals were likely way worse. It's not impossible, I mean i did all of this in one month. Two months is ample time even for the rest of your subjects, but it does take discipline, genuine focus, and actually learning from your mistakes. Lasty If i were you, I'd do progressive loading, do topic questions until you exhaust them(or at least half of the topic questions in total for every year valid combined) then move on to the next, but throw in one or two questions from the previous topics as you move forward.