is it i over sensitive....

haiz...at 28 friday, Mr Ang return our test paper to us..even i know it was quite easy , but i did not do well in it.. i just get 16 over 20..which is a average mark in the class..ya..i admit that i quite sensitive to the mark..or can said that i am very care about my mark...i have many careless mistake in it..the question which have 3 mark cause me cannot forgive myself..the answer just two words only..but because of the shortage of time , i see the question wrongly..most of my friend advice me no so care about it..and i am trying to do tat...at the same day , my car crash with another car..luckily the bumper did not hurt much...thanks god..if not i sure get kill by my parent.becoz of the mark , i unable to concentrate when i was driving at tat time..it is the main reason of the accident..i wish myself that i can do well in the mid sem exam..it is my aim....