Do you have problems putting things off? Are you so worried about the quality of your work that you don't submit it? It is often said that procrastination in grad school is different from procrastination in undergrad. Below you will find links to videos and articles that deal specifically with the type of procrastination graduate students face.
This hour long video talks about graduate students' procrastination.
This 52 minute video talks about graduate students and their lives during grad school.
Source: " Taming the Shrews: Perfectionism and Procrastination in Graduate School Life " by the University of Georgia presented by Any Case-Simonson, PhD