pc screen turns black but won’t (?) run

so i have has this pc for a few years now, so for no problems encountered. The other day when i was playing, i was shocked to see my pc screen turned black, and when i try to turn it back on, it shows me the set up screen. I didn’t know what to do so i just turned it off and left it overnight, to which it worked. Last night though, i was playing and it turned black again. I left it overnight to see if it would work but its still black screen upon start up. Please help😭 i have tried the win-ctrl-shift-b thing, the press the power button for 20 seconds to force restart, but it still wouldn’t work

video link: https://streamable.com/x0dp06 it does expire in 2 days so hopefully i get help pls🥹