Though I do prefer order and neatness over messy chaos, I am cool with some mess, enough to not consider myself a perfectionist. And I think that in the long run, it saves me a bunch of stress.
When I first got into doing decorative painting, I loved it so much and learned quickly that if I wanted to enjoy it for more than 5 min. I had to push aside my need to paint straight lines, or have the "right" colors, or even know all the details of the project. It allowed me to make several super-creative pieces that I often gave away as gifts. I noticed that those "mess-ups" that I might find I wanted to point out and apologize for were never noticed by anyone else.
Creation is mess, and almost everything is creation. If it's not creation, it is most likely destruction and we know that is messy. So then if something isn't messy, it's boring and possibly dead. I am grateful to be on the path of making peace with all this. But you know, that too, ain't neat either.