Chosen Solution

When I try to take a picture with my tablet the screen is black when I try to take a picture of myself. However, it is perfectly fine when I try to take a picture that is not facing me the screen is no longer black.

Some android tablets are very fragile, due to them being cheap, Chinese brand stuff. I don’t know if your tablet is name brand or not but either way, that could be from motherboard damage. and that can be caused by dropping the tablet, water damage or even it getting to hot. Maybe you left it in your car on a hot day, its very possible something like that messed it up.