I think the greatest thing you learned on your 180 website trip was how to deliver. You've cultivated a habit of finishing projects and shipping them through the door. No matter how good a developer you are, that in itself is invaluable.
It was actually a little overwhelming when I first started working on YumHacker. I conditioned myself to have a final product at the end of the day. In the first few days of working on YumHacker I had to keep telling myself that I was working on the order of finishing features not websites. :)