1 group or both?

hello friends, i have been giving both ca final groups for 3 attempts now, but couldt clear either, my entire family friends have been advising me that i should give 1 group now in may. but i still want to give both groups as i know that i will get 20 days extra this time as exams are from 26th may and moreover i already have an exepmtion in financial reporting so i have to give 7 subjects. But the only point of contention of my family and friends is that "institute ki pass percentage 1 group me zyada h, and dono group mein pressure ajata hai", and i really wana give both again this time, but i wana take WISE decision, plz help