Launch bug can someone please help me nothing works.

Hello, so i tried to open my minecraft today and i cliked on "play" in the laucher and then it proceeds to show a white screen and there is just nothing that happens. I have tried to do the thing where you delete the file i have tried to uninstall and reinstall the game i have tried to run it as an administrator and litteraly nothing works and there is nothing that wants to help me so please.