Both @catweasel and I agree ... what you (generic "you") rewrite is never as good the second time around. Not for either of us. I don't know why that is, but the second version is consistently inferior. That's a big part of why losing the first one is always so painful. It's not just the work involved to resurrect it -- it's the disappointment when you finally do finish.

I've been known to just abandon a project completely at that point. I figure it must never have been meant to see the light of day. Because that's what happens. Writing ... and rewriting ... and editing ... and starting over. Writers get used to it. Goes with the territory.