If you haven't done so already, consider joining a critique group or finding a critique partner to participate in free critiques, before paying for one. There are several options: you can post part of a manuscript on the critique board here, you can post in the looking for an online critique group board here, you can get in touch with your local SCBWI regional chapter and ask about their critique group offerings in person or on line. Critique groups or partners not only give you feedback, they also teach you how to give feedback (strengthening your craft), and offer accountability. Good luck.