Like a previous post... I have found it very liberating to just "make it go away" and have tossed some just to ugly to finish. For years I stressed and made myself finish projects ... it really impacted my quilting in a very negative way, being bogged down in "bummer quilts". Free yourself of projects that have become a burden.. Life is too short and there are better quilts waiting to me made.
Sometimes I cut the fabrics into scraps , if the blocks were large enough.