For the last year and a half I have had a book idea in my head, writing it practically everyday in my head, I have the characters, plot line, scenes, style of writing, themes all planned out.

I have plenty of free time coming up and plan to write the book during then, a few hours each day ect.

Depending on how well I write the book at the end and if I feel it's any good, I may plan on publishing it

So depending all of this does plan out and fit together, how can I go about getting it published?