I have a Kindle template that I've used for both clients and my own books that you can have for free.
Working efficiently with Word requires 3 components:
This template gives you 1 & 2.
If you're comfortable with item 3, then you're good to go. Pop your email in the box on the right, click on the button and this proven template will be winging its way to you shortly.
However, if you're not, then I'd check out my other material/courses and they'll set you on off on the right track.