Lose reputation

OMg...The end of the semester coming soon, but now I haven start to study yet!!
I have no mood to do my assignment also, dunno why!!
This is my second semester, obviously I am lazy than before. Everyday do nothing, never pay attention and whole heatedly to listen the lectures in class....haiz..
At the first semester, I'm not like that!! I like to go college everyday, like to make fun with my classmate and lecturer..BUT now?? nothing special for me anymore!!I loss my pugnacity, loss my spirit, loss my responsibility, loss my assiduous..and so on!!! so sad lah.. I feel emptiness in my heart, no motivation anymore...How can I become this?? I really cannot forgive myself lah...
I have only 1 month to prepare for exam..but I feel nothing in my mind right now...how can I continue to study??OMG.....