I'm no genius with these things, but a couple things come to mind,
- Is your "location" turned on?
- Did you set your "home" as a location? Not sure that would matter, but maybe it needs/wants a reference point.

As far as apps go, I usually just google "waze app" (for example) and go from there.
My 2 cents: these things can be frustrating, so be patient and don't be afraid to ask a kid. They know everything about these contraptions...