My name is***** will assist you.
I am sorry to hear that happened.
This may be caused by a glitch in the firmware and can be resolved by a forced reboot, then your kindle will work normally again. Slide or press and hold the power switch for 40 seconds, then release. If that fails then it means something came loose internally.
Usually the cost to repair is too much and the best option is to purchase a new or refurbished kindle which is a good value,
You can read the books from another device or computer while you are getting the kindle replaced with the Kindle app which is available for most major smartphones, tablets and computers. That means with your free Kindle reading apps, you can buy a Kindle book once, and read it on any device with the Kindle app installed.