First off I would get your system to an Apple Store or Apple authorized service center. These new series 2016 onward all have an issue with the display ribbon cables failing which I suspect is whats happened here. It should be covered under warranty.
But your window of time is slipping! Don’t put this off as this is an expensive repair if you get stuck with it. Once your system is working (at the Apple Store) I agree with Mayer get the extended warranty you should be able to sign up at that point.