Expectation of perfection vs. the never ending list of 'to do's' I am wondering if anyone has experienced conflicting feelings of failure associated with their work? Essentially, I am struggling to continue my students and maintain a proactive attitude while continually facing an ever growing list of tasks. 

I find myself struggling to even start the list in the morning, and when I do I either fixate on one particular task or rush it (which I later chastise myself for). Throughout my undergraduate degree I worked hard and made great progress, however upon reflection I find that unless I am sure my work is ‘perfect’ I am very reluctant to submit it, and will later feel guilty about it. 

I guess most of these behaviors are associated with the fear of failure and/or self belief, or something such like. But I wonder if anyone else has experienced them in their work and if you have discovered any strategies/advice you think would be beneficial.
I don't know if this is the best approach or if it works for everyone, but here is what I did in the past when I was paralyzed by just looking at the never ending list of things to do.

I simply broke down every task into more manageable pieces. Now I have an even longer list, but the good thing is non of the items on the list looks scary. After making tasks manageable, I set deadlines for every task. Deadlines forced me to stop working on a simple task just because it didn't look "perfect". At the end of the day if there is still time and I have energy, I can easily start working on the items that didn't look "perfect" to me without delaying any other task(But at the time I was burning out, and I realized that. So I stopped working on the things that didn't look "perfect" to me. Instead I took a break to clear my mind.).

If you can prioritize the tasks and break them down to more manageable pieces it is great. If you can't, may be you can ask a friend to help you.
After completing a task without over thinking about it and without missing a deadline, what I felt was success and that is what kept me going. 

This way I kept my sanity and started to regain self respect, instead of punishing myself for not committing to work and spending the day paralyzed.