Others are put off because of your own uncertainty about what to do or how to do it. Some are put off because they're extremely important or particularly difficult. Check your motivation. Some people fear failure because of the importance or difficulty of the task. Some fear success, because success leads to more demands.
Some people resent authority and resist compliance out of hostility.
Some people are perfectionists and refuse to try if they are not guaranteed a perfect outcome. Some have low frustration tolerance and don't want to be bothered. And finally, some people are just depressed, they have little energy for anybody or anything. If procrastination has become a serious problem for you, call the UCC at 994-5300, and ask to speak with a Counselor. I know a fair amount of this material, I'll do OK, and besides, the test score may or may not measure the things that I learned in this class.