Pay no attention to horror stories and scare-mongering. These often occur around exam time.

You might hear people passing on tales such the following:

"Some people walked out of the Sociology exam last year"

"An exam paper had two pages missing and had to be reset because of protests".

"I knew a student who did no work on the course, began revising the night before, and finished with an A grade".

Even if they are true, these stories are usually about exceptions to what is normal.

You should concentrate on positive efforts to prepare yourself.