I've hit a mountain.

I was going to say 'roadblock' but 'mountain' describes it much better.

Revisions.

I finally got a request for a full manuscript from an editor who's interested at a NYC publisher...

So, what's the problem?

I found a few holes in my manuscript, and I won't kill my chances at finally being published by submitting anything that isn't my best.

I'm working on a spreadsheet to find those holes and have chipped away at the mountain, but I'm having doubts.

I imagine that everyone has doubts about their work at times, and maybe it's first time jitters. (I'm a virgin! Er...in being published.)

The carrot is dangling in front of me, I need to beat the donkey and finish these revisions.