Confused

I unexpectedly passed Final 1st group in Nov 2014 attempt but as i was damn sure that I would not be able to pass this time so I immediately started coaching again for Ist group after Nov 2014 exams without devoting a single minute to second group. Now i confused how to prepare for second group...I have taken coaching for DT about 1.5 years back IDT about 1 year back and since then no revision of DT and IDT... ISCA untouched till now...So how to cope up 2nd group in 3 months time... Kindly provide me with your valuable suggestions...Thanks :-)