Working on more than one project at a time is almost unheard of here. I always have too many projects. At one time. And before I finish one, I find a couple more I want to try. This board gives me so much inspiration. If you are tiriyof your quilt try to set a smaller time per week to work on that one and give a go at a new quilt in the remainder of your time. As long as your are having fun do what you want.