What are you so afraid of?

My daughter went through a phase where we'd watch Disney's "Frozen" several times a day. (thank heavens that phase has mostly passed!)  One of the lines in that movie that always got stuck in my head was when Anna asked her sister "What are you so afraid of?"  I've been contemplating this line the last few days as it became glaringly apparent to me that it's something I need to consider.

 Here's the problem, I am only 4 chapters away from the end of my book.  I have rough drafted, plot charted, character analyzed, first edited, and now I'm only 4 chapters away from my second edit being finished.  I promised myself that once I finished my second edit the time would come to start querying, that was three weeks ago.  Those four chapters are still un-second-edited.  Why?  I came to the realization when I was talking with a friend that the reason those chapters are sitting unedited is because I'm afraid.  I am A.F.R.A.I.D. but why?  Like Anna said "What are you so afraid of?"

I guess what it boils down to is I'm still holding onto the lingering insecurities of youth, what if no one likes it?  What if its not good enough, thereby I'm not good enough?  I'm afraid that this brain child that I have so lovingly held onto for so long will be completely dismantled.  Can I stand to see that happen?  Can I let 4+ years of work go into the big bad world and be beaten up?  Can I handle the rejection since I will inevitably be rejected several times?  ARGH!!!!  Why can't this just be easy?

So here I sit contemplating my own insecurities.  How do I overcome it?  Man I need to work on those four chapters...