do a Hard Reset. You'll have to google How Been a while. I think you Press and Hold the RESET BUTTON while pressing the power button. but a quick search will tell you how. Yes you will lose all data on the tablet.
my kindle fire is froze up on my facebook page and i can't get it un froze. I have tried holding the power button for 20 seconds and that does not work. It won't even let me go to my home page, is there any other way i can unfrezze my screen