There's a lot of artwork I do that I finish and go "this is complete crap, it was a waste of time, I can't believe I even THOUGHT I could make this look good."
But I put it up anyway because I enjoy keeping a public record.
Later I look at it again and realize it's not terrible, and maybe even pretty damn good. And then I'm very thankful I didn't toss my "mistake" into the bin. I'm thankful I put it up so I could get feedback and thoughts. I'm thankful I said to myself "let even your mistakes be known". Because the "mistake" might not be as bad as you think. And every mistake is a learning opportunity.