So I was playing Black Desert Online yesterday, suddenly the game freezes, I try to tab out of the game but the computer is completely frozen, 10 seconds later it tabs me out but then huge blocky lines comes crossing diagonally over my monitor. I restart my computer and everything seems normal, I open players unknown battlegrounds to test if it happens again. Everything runs smoothly until I actually find a match, after 5 seconds of being in the lobby waiting for the airplane thingy everything crashes, on my monitor it says "No signal input found", but my computer is still turned on. Now the day after it happened, I can turn my computer on but theres weird lines thats almost transparent in a blue(ish) color scattered around my entire montior, when I open a dark page on my browser they turn transparent(ish) just that they're kind of white so that dark parts of the page disappears. Now just before I posted this my computer crashed just from being on microsoft edge for 2 minutes.
Update: my computer wont start at all anymore unless i run it in safemode
Video of what happens when i turn on my computer, the computer is still turned on, but it just shows a black screen: