I do this 'stand and stare' at my fabric too..and I have been quilting since the mid 80s! I try to make one decision at a time. First I pick the pattern. Then maybe the border (I often pick colors for the body of the quilt from the border fabric...even if its not enough for the border). Then I set the timer for 15 mins...and start cutting. Or with a jelly roll pattern maybe sewing for 15. Usually at the end of 15, I'm hooked. If not, I go do something else and come back and do another 15.