I was also facing the same problem.
First attempt -FAIL(both groups)
Second attempt -FAIL(both groups)
Third attempt - FAIL(both groups). At that time i was like dropping CA and do something else, i was Fckd up with all advices cming frm my frnz , my relatives ..But at that time i had to mke my decision , tht eithr i want to cont. or not.
I knw its very hard to study the same subjects again n again.For the first week i motivated myself, and then i said to myself that i wont leave anything this time n i ll work on my mistakes.
And now in my fourth attempt May 2012 , i cleared both groups with 446 marks and exemption in 3 subjects.And now no1 remembers my failure, every1 speaks abt the success.
So i would say to you that ask yourself that you want to cont. or not. dont ask ny1 else, ask yourself.
there is no1 to advice you..