some times you have to move on, and that means not blaming yourself or the design.
I committed myself to donating a stained glass to an fundraiser at work, spent lots of time drawing and erasing to come up with a design. Carefully chose glass, then was not exactly thrilled with the result...

those dark pieces are not black, but a very dark violet that seemed to let more light through before I started.
so off I went to draw a new design and in that mood came up with nothing I liked. Then I let the thought float up... the design is good try again, which I did...

Oh, the first piece will not be destroyed. I have made art for long enough to know that just because I don't like something I created, doesn't mean nobody will like it. I am pleased with the second piece.