D3D Crashes

I have had D3D crashes for more then 6 months and nothing seems to work. I have a high end pc and can run any game without any trouble except fortnite. I have tried everything, factory resets, older drivers, reinstalled fortnite and UE4 like 80 times, like litterally everything that i could come up with or could find on internet. I cant play longer then 20 minutes without crashing, i cant play arena or cups because of it. Does anyone have any fixes? Please if you do tell me. Or is this just a lost case and sell my pc and buy a new one?