Question I need some help. My screen keeps flickering, like it randomly goes black for a split second then goes back to normal, and it happens frequently. help

Feb 20, 2019
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the monitor is: The ROG Swift Gaming Monitor PG248

pc specs: GTX 1080
16G RAM
core i7 9th gen
RX 750 ss power supply

it doesn't matter what hertz i put the monitor on, I went from 60-144 and even overclocking it to 188, but still it flickers. Its not just with games, but with everything, Corel painter, YouTube, scrolling through the internet, it keeps flickering randomly on me. I changed setting in the Nvidia control panel, but i just can't seem to make it stop.
The monitor is still brand new, I have it for about a year now, it started doing this about a month ago.
 
Feb 20, 2019
2
0
10
I have tried using a HDMI cable, but that doesn't go to 144 hrz, and this monitor does not have any other cable options besides HDMI and DVI port (I think it is called DVI I am not sure, it has this weird "P" like symbol) and yes it is also connected properly