Hey there!! :D We are all quilter's together & have all suffered the very same problems. But the answer isn't throwing it away. Just put it aside, clear your mind & take a break. You will be surprised how much easier it will be to fix the small problems then, and you will feel WONDERFUL about it afterwards!! My Mom has always told me that & she is so right!! Your niece is going to be so proud of this lovely quilt.
(((((((Hugs))))))))
:D :D :D :D