Ipcc exam

hi 

i only have 1month and 15days left for exams in nov 2016 , i have revised only accounts and i have to prepare whole of tax cost fm n law. i m very confused about how to prepare, in law i should prepare co. law first or ethics n comm?should i solve all ques in costfm or just solve a few ? 

also if i solve only costfm practice manual n no other book, would that be enough?