This has happened to most of us at some time. Don't let it dissuade you. Just remember quilting is meant to be fun. Put this aside for now, maybe you will find a different use for the fabric and it will still be beautiful. Don't give in as that is a rather ambitious quilt pattern for a relatively new quilter. Put it aside and maybe try again after you have made a few straight forward quilts. Happy Quilting and don't forget the quilt will be just as warm and loving even if all your seams don't match.