Ca final due in may 2016

Dear Members,

My attempt for ca final due in may 2016 ...please guide me whether to take IDT & DT classes now and whether there would be any change for me 

I already completed financial reporting , ISCA and thinking to study audit and law myself

Please guide me few books and is it wise now to take coaching now or what I am pretty confused at the moment

regards

Gaurav Jain