> the fear of disappointment. Can I fulfill my parents expectations? Can I fulfill my own expectations? Will I fail? Will it hurt to face my own demons and my own fears of not succeeding?

This falls pretty squarely into the “expectancy” factor. You don’t have faith that you’ll obtain a pleasing outcome, hence you procrastinate instead.

From the article “Expectancy. Do you expect to succeed? Are you confident in your ability to achieve a great outcome in whatever you aspire to do? If your expectancy is high, then you’ll be more motivated and you’ll procrastinate less. It’s only natural: you’re more motivated to pursue something that gives you a good chance of having a pleasing outcome.”