Urgent Advice needed

i was sick for last few days so could not study much…now with exams two months away i have to make a decision so i need your help to reach a decision as to the number of papers i should sit……as some time has been lost and i have also got other papers to prepare should i rely on opentution notes, lectures and exam kit for P4 ( basically excluding P4 studybook) and hope to pass if i have good understanding of what there is in the notes or should i drop this idea….i have already gone through the notes once in detail btw.