i think i did badly in my AIS paper.. how?? i didn wanna fail o get bad grade..

today.. my second paper liao la.. yest de paper still ok.. but today paper.. i think i've screw it.. it wasn as difficult as i thought.. but when reach home and look at the book.. i realised that 2 of the Q i did wrongly.. one cost me 25 marks and another cost me at least 16 marks.. man.. i am so scare that i would fail this paper.. i didn aim that high.. i guess hope that my grade would be higher than last sem de only.. my cgpa.. that's also a lot ma?? o i study too much that the ilmu spill out from my brain.. i really dunno.. now.. i hav another major paper tomolo.. but i dun hav confident at all.. wat if.. i cant do again.. man.. god.. please.. dun let me get C this time.. i just dun wish to hav a C anymore.. =(