Is it just quilting that you find difficult to focus or is it other things as well? Decide which day(s) of the week you want to sew. You might try to set up your machine, lay out your materials and other needed tools the night before. When you awaken, grab your coffee and breakfast and get started right away before the distractions of the day can take your attention. You will feel better about your accomplishments even if you get a couple of hours of sewing under your belt.