There are many professional businesses and individuals that offer critique services for a fee. Critique services can certainly be helpful. Ask for references and look around to find a match that works for you.

SCBWI Recommended Critique Services
(For SCBWI members only)
Go to: http://www.scbwi.org/pubs.htm
Scroll to: "MEMBERS: click here for the complete list of publications & ordering information." Click there and scroll to the "Getting Started" section and you'll find: Freelance Editors & "Manuscript Doctors" Listing.