DO THE REAL WORK.
A lot of people want to write books, and I say yay! But wanting to write one and actually writing one are (sadly) two separate things. I know a writer who has already planned a monster, cross-country book tour, down to that writer's outfit (awesome hats are involved). However . . . there's no manuscript yet.
Writing is often hard work, which is why it's so easy to avoid doing it. But it's doable work. Set realistic daily goals and then carve out the time to achieve them. Right now I'm happy if I can get down 500 words a day. But if I keep this up (and I've said this before here, so forgive me for repeating myself), there will be a book at the end of the tunnel.
Possibly a crappy book.
But that's not the point.
The point is that you gotta make a plan and roll up your sleeves. And then roll your sleeves down again if it's freaking cold in your house. Obv.