Yes, interruption is a mojo killer. I agree.
I'm sure your creation was not horrible. Just not what you hoped it would be.
Many times I make something and hate it. So I walk away. I see it later and
think - oh that's not as bad as I thought it was. We just talked about this very
thing at card club last night. One girl said when she leaves and comes back to her
cards that she didn't like, she looks at it and says - someone else snuck in here and
made that card, because it's cute and it can't be mine. LOL If you hate something,
put it aside and look at it later. It might not be as bad as you first thought.
Now, try, try again. You'll do it! Afterall the challenge is You Can Do It.