The frustrations of writing

Last night I started on a new story, and it was going really well.  I managed to get 1,500 words written, which is good considering I have three kids, but then I suddenly realized I had done the one thing that authors hate most...or maybe it's one of the many things authors hate most.  I'd painted myself into a corner, with no way to get out.  Somehow I'd gone left when the story should have gone right.
I had no choice but to go back and cut some of the story out...going all the way back to where I first detoured.  So, when all was said and done, the 1,500 words I'd written became 350.  Oh well, I can still work with what I have.  I'll just be more careful to stick with the original idea...