sr sec october exam pyqp doubt

my subjects are
English
Psychology
Military Studies
Business Studies
Tourism

so guys i have covered all syllabus and im rn about to study pyqp
when I was downloading the pyqp in year 2023 it has 3 types of question paper like ASS\ESS\OSS [question changes]
which one should i study [how many years of pyqp should l study]

Guys also give me tips to what i should do to pass my exams