Having been quilting for about 15 years now, I have a rough idea of how long any given sized project is going to take. I generally make bed quilts as gifts for family/friends. Toss in a few baby quilts along the way. I just last night finished hand sewing the binding down on a baby quilt. The baby is due next week but I believe there is a c-section scheduled for this week. Talk about cutting it close!
I have another over sized twin that I'm still piecing - but almost done - that is to be gifted in June for graduation. I'll be hand quilting that as well. Now that the baby quilt is done I can concentrate a bit more on that one. By the same token, when I was having design difficulties with the larger one, I concentrated on the quilting on the baby quilt. Tried to toss in some knitting when I got frustrated with both.
Have a few other balls in the air non-craft related that I need to concentrate on as well. Sometimes makes the quilting or other crafting difficult to focus on. Sometimes the crafty side helps me focus on the other things.
If you have no specific deadline for this quilt that is giving you fits - put it on the top of your UFO pile until you become inspired again. Life is too short to make yourself crazy over troublesome projects.