When I find myself having problems liking what I'm making, I put it aside and start/finish another project. Then, when I'm in a better state of mind I pull the "difficult" quilt back out and continue. I was asked to make a scrap quilt by a friend who had sewn strips of fabric together in about 10-12" strips, but wanted red for the sashing. Now, I like red, in moderation, however, I was having trouble. Then I remembered seeing a quilt teacher on Simply Quilts who treated red as a neutral. I finished the quilt by telling myself "red is a neutral, red is a neutral" and it worked.