I've had this big ol' tasks hanging over my head at work for weeks and I finally sacked up and did the first half of it, and now the second half is looking way less scary.
The Ugh Field surrounding this task was mostly built up of "wah, it's already overdue, I can't even stand to think about how overdue it is, I am ashamed and I suck, and when I turn it in the recipient will totally be disappointed and excoriate me for taking so long". Which, okay. The delay is a problem, but it's not the damn end of the world, and the recipient may be quite annoyed at me taking so long for no good reason, but goddamn it, my group is doing them a favor by doing this task at all, and I'm doing a damn good job on it.
Because of this (sending an email and not getting immediately chewed out for tardiness), it is perhaps unsurprising that the Ugh Field surrounding the second half of the task just suddenly shrank by a lot.
Just keep swimming, just keep swimming :)