Amber,
Whenever I read your blog, I always think that you are not only inspirational, but a talented writer. You know how to touch people with your words. May I make a suggestion? I'm a writer and if this is something you really want to do -- take a class. Even if it's an on-line class. Talent is one part of the equation. And that is a natural born gift. The second part is form. And that can be learned. It will make writing your story that much easier.
Get some books on writing too. Most writers map out an outline so they know what the chapters are before they write them. You can just make it up as you go along, but I assure you if you do it this way, by page 10 you'll be putting on the TV, getting something to eat, calling a friend -- because you'll get stuck on something and not know how to continue.
Best of luck. Dreams come true for those who pursue them with passion.