Should i prepare for final exam

Dear Freinds,

i have appeared in pcc second group i have got exemption on both cost & Fm as well as Tax but unfortunately i couldn't score 40 in it & sfm i missed by 8 marks , i have already cleared my first group. should i prepare for final exam as well as my   IT & SFM Paper. or i should only focus my it & SFM Paper. 

plase guide me.

Thanks in Advance.