Regrets: Not having a clear plan when I started. I forumlated a semblence of one about halfway through the story, but until then I was writing blind, and I don't much like that. There were a number of times where I feared the story was on the verge of ending, and barely managed to pad it out for longer. I also wish I had developed the parents more, instead of bringing them in towards the very end. I also had plans to drag the story out over the course of several days, but as events just kept happening in the story, everything ended up taking place over a mere 24 hours. Having the parents in it earlier, and holding off on the doppleganger appearing, if I had a more clear plan, would have lessened the padding some, and given better development to the characters.
And now I sleep, to write a comic rant upon waking.