Screen flickering need help

[newatpcbuilding]

Yesterday it happened for the first time with pubg, my screen started flickering, it was consistant flashing with green and purple lines. I've been trying to fix it and now it also happened in other games, I really need help with this problem as soon as possible. I've tried updating my drivers reinstalling them, restarted my pc.. What is there left to do? Computer is a few months old with a gigabyte 1050 ti inside, alsoo few months old

 

[newatpcbuilding]

SOLUTION: Go to Nvidia control panel (right click on desktop)> change resolution> use nvidia settings.
Credit: https://www.youtube.com/watch?v=6o3slx1jkqk