Neutral is not the same as ground. Time to bring in an electrician. 
If you do want to go forward as a DIY project, and you live near a Home Depot, many offer classes on how to install light switches. This is a really good place to start even though they are not working with networked switches. You will learn a lot about how to safely work around wiring.
Itâs also absolutely critical to understand that in the US wire colors are not mandated by code in most jurisdictions. Anybody can use any color, and many times people will just grab the last piece of wire in the box. You cannot go by wire colors alone. You have to know how to test each segment of each line and figure out why itâs in the circuit. So donât just go by some Internet page that says âwhite means thisâ and âred means thatâ. At your house those might be reversed! Or you might have two white lines that do completely different things.
The following FAQ is a good place to get started on the concepts. But seriously, I would bring in an electrician or take a class before proceeding with any actual wiring.
The following FAQ about switch versus bulb should also be of interest. Bulbs are definitely easier to set up.