Theres really no wrong or right way to write a book, as long as you have a solid plot :) if you would like some more help Without going and finding a editor, feel free to send me a clip of your story at email@example.com :)
Many cities and towns have writers groups that meet to bounce ideas off each other and critique each others work-in-progress. Try looking in your local paper or asking at the Public Library. Many groups are specific to a genre like poetry or sci-fi or autobiography. And some groups are helpful and others not. You have to find one that's a good fit for you. Many famous writers are part of such groups or used them as they were getting started.