how do you prepare your exam ?

well ,i am going to take an exam ,i really do not how to prepare .i always fail in the exam .

first pray God to get you God support and God speed

second you must choose the suitable time and place

third take a fast prefiew over the texts of the exam

then take the most important ideas and topics

then start to take the details part by part 

do not forget make some coffee with milk …  it is good to refresh your mood

take all the helpful tools close to you like computer , paper and some open window to take fresh air 

i wish you to do good jop

I bet you never studied that’s why failed!

oh ,what you said is broken my heart .i do study hard ,but i do not know why ,when i am exam ,i feel some ……i do not how to express .

Keep in mind that you take the exam is not just to get the good mark. It’s a gift from God when you get the good mark.
Exam is the way to measure what you have mastered form the lessons you learn.
The most important thing is how the process you take during your learning. Whether you success or fail in your exam (get good mark as what you want or not)... as long as you have tried your best to prepare your exam (study hard n make pray to God), actually you have taken the steps to reach your success.
good luck for your exam!