Almost ca but not ca....plz help

Friends I cleared my ca final 1st grp in may 11....thereafter I could not clear 2nd grp since my last 3 attempts....I was a bright student....scored 85% in 12th cls....nd 78% n b.com Hons......I always study for 4 months for 9 hrs nd even not doing any job.....I loose all hopes now....I work soo hard....I did all case laws, rtp, compiler....but I never score more than 45 marks in DT and idt.....though I scored 50 in costing nd isca....my xams were also good....I even dont know where is my mistake.....I did all course....presentation in xams was good....nd even exams was good....so was that my bad luck from past 3 attempts.....my frnds saying do any job u get nd study this tym for just 20 days.....I m fed up now....dont like studying nd dont want to do anythg.....I dont knw what to do nd I even dont want to change my books coz I dont want to study more.....I never worked hard so much ever nd when this tym I m doing I could not pass.plz suggest frnds or else I will quit ca or do nothing in my life. god bls u n advance whoever suggest and help me.