getting sick of yarn?

I never thought I'd say it, but it feels like when I've eaten too much, past the time where I say to myself, "I should really stop eating now," and I've gorged myself to feeling physically uncomfortable.I feel overwhelmed by the number of projects that I want to be working on RIGHT THIS MINUTE.The front and back of the target yarn sweater each took 5 hours. I'm about halfway through the 3/4 sleeves.I created my very own pattern for dave's cashmere scarf.and I cannot for the life of me get through more than four rows of the the diagonal orange yarn over sweater. it's seeming rather hopeless. I spend more time undoing stitches than actually knitting stitches.