I appeared in CE-15 and Psychology was one of the subjects which i prepared the best and even my exam went awesome i was so sure that i would score around 70 in paper I and II individually. I even made pretty nice diagrams, charts, headings etc. I prepared from foreign writers' books and this subject was on my finger tips but i am shocked to look at my marks which are:-
Paper A: 47 and Paper B :49.

Would anyone care to shed some light what went wrong here ?
What would you guys suggest me ?
Should i drop this subject and opt Geography ?
I am confused because i still think i am better at psychology than geography even though i scored 138 in geography and the papers were not as good as psychology.