Professional Copy Editing for eBook

I have an e-book that I’ve written. It’s just over 6000 words designed for a young professionals who are wanting to break into the sales field, and the content of the book is geared around cold calling specifically. Full transparency I dictated all of this based on my 20 years of experience and then ran it through ChatGPT to clean it up.
https://docs.google.com/document/d/1P99gRrnpvBNrZigLQJoyL8Uwg_NCoC4YeI8-SkdZwb8/edit