Help please

my problem is CONFUSION

I don't understand kya karoon n kaise karoon

for example - i have icai mat + practice manual for a/cs , pc tulsian and also praveen sharma's book for account . I waste most of my time deciding how to study them . I mean pc tusain for concept and practice as well or pc tulsian for concept and praveen sir's book for practice or pc tulsian + icai mat for practice

only 3 months left for ipcc and very confused . pls help me