Mänttä Group 1 Interview Practice

I have had a personal writing project sitting on my computer for almost a year. Every few months, I open it, add a few pages, and then leave it alone again. Recently, I started wondering if professional ghostwriting services could help me finally finish it. I have never worked with a ghostwriter, so I am unsure how much control the writer has. Has anyone tried this? Did the final work still feel personal? I would really like to hear about the experience from someone who has done it.