gone again pcc o god

i feel so depressed to say i failed again in pcc 2nd grp,for gods sake i was damn sure of clearing it wid ease,unbelivably gt 39 in cost acng(135 aggregate) which i compared with institute suggstd answers,was confident of getting 55,my frnd on de other didnt evn prepare for 2nd grp,simply rote,he himself is shocked to c that he gt 43,1st grp vich he prepard he failed,wat rubbish,guys temme wat do now?will retottalling work,this time 2 i disappointed my family.......help me