I get that way too sometimes and I just have to get in my sewing room, pick out a pattern (or kit I have laying around) and force myself to cut the fabric and get started on it. Once I do that, I almost always get "into" the project and Voila! A new project is born and I'm "into" it once again and enjoying it! You just HAVE to force yourself... once you do that, you're well on your way!