I put a 1 inch tuck (taking up 2 inches of length) just below the bust on that dress and now I would be willing to wear it out in public. In fact, I think I will, today. Which means I need to hem up the bottom and the sleeve ends. Which tells me I likely didn't mess up the width as bad as I thought, but simply missed the waist by too much.
And, another lesson I forgot to mention in the previous post: No matter how tempting, do NOT use basting spray to keep the neck facing in place for sewing. Regret WILL follow.