kindle fire hd 8 7 gen screen won't turn on

one day my kindle screen decided not to work. It didn’t take any water damage or fall damage, it works but not the screen i tried hold the power button and charger it at the same time but every time i do that the back gets really hot, so i gave up.

Now here i am 1 year later trying to fix it i replaced the battery https://www.amazon.com/gp/product/B07XK3...

but the screen still wont turn on what do i do