Overwatch will not start

Overwatch for me was working fine till a couple days ago when it froze and blackscreened after clicking on play … When i alt tabbed it said rendering device lost … I looked up that issue and tried ALL solutions but none have worked … Drivers were reinstalled, everything IS UP TO DATE, the game and battle net app were reinstalled, i tried underclocking it which did not work, i tried turning the graphic settings down through the geforce experience app that didnt work either … Idk what else to do except contact support hence this post especially since it doesnt look like theres a number to call … Any help would be appreciated thank you