Writing a book is very therapeutic to many, but there are many more facets to writing a book. You also need to think about marketing and speaking and writing an e-book.
For all you 'newbies' (new authors) don't let this article intimidate you. It's actually easier than you think to publish an 'electronic book.' An electronic book (aka 'e-book' or 'digital book') is a book-length publication in digital form, consisting of text, images, or both, and produced on, published through, and readable on computers or other electronic devices.