Maybe you’re writing a book in your head, but it’s oddly hard to make it readable on paper. These are the outcomes people generally want:
…either an autobiography, for family, friends and descendants – to be circulated privately. You can skip the ‘Will your book sell?’ section because sales are not your desired outcome, and go straight to the next page but one – How much work will you have to put in?
…or a book you can publish and sell. For instance
If publishable work is what you want, then go to the next page.
If you simply want someone to offer advice on your writing or proof-read a manuscript, then do have a look at the Society For Editors and Proofreaders site.