Guidance required

Sir / Madam I am a CA FINAL student and had already given my attempt previously , but not able to get through.i had already given both groups and lost in aggregate. Now , this time i have only two months left for exams but i have not even opened my books till now . So plz guide me that whether the time is sufficient for giving me both groups or shall i concentrate on only single group only . Plz suggest me as early as possible . Thanking you in advance.