Which group should i appear?

I HAVE NOT CLEARED 1ST GROUP OF ICWA (INTER) IN JUNE TERM.I HAVE ALREADY STARTED TUTION OF GRP 2 FROM JULY.I AM ALSO WORKING IN A COMPANY FROM 10 AM TO 8 PM.NOW MY QUESTION IS WHICH GROUP SHOUL I APPEAR  FOR DEC TERM EXAM?AS I HAVE NOT YET CLEARED MY 1ST GROUP,I AM REALY IN CONFUSION.APART FROM THAT I GET VERY SHORT TIME FOR MY PREPARATION.MY JOB IS AS ESSENTIAL AS MY STUDY.SO FRNDZ PLZ HELP ME.WHAT TO DO?????