When I get that way I step back and leave the project alone for however long it takes. I may do something else inbetween, baby quilt, table runners, christmas stockings to give away, embroider. Generally when I go back to the project it's because in my heart it's ok and I have a new prospective about it. Do something you enjoy, after all, what is it going to matter in 5 years whether you got that project finished or not. I have also found that if I "promise" something, that there ends up being mega pressure and I do not enjoy the project. It stops being a labor of love at that point....