Question Heatsink securing screws won't budge ?

[Glitch12]

I have tried every screw [screwdriver?] available to the smallest and the one that fits, but for the love of God, it won't budge. I am trying not to damage it so I didn't go full ham on it, any suggestions?

 

[Mtop]

Suggestion, Which heat sink CPU ,GPU, Northbridge,Southbridge,or Ram.
Which Screw? Gor any pictures?

 

[Glitch12]

https://imgur.com/a/6BwlYfK

View: https://imgur.com/a/6BwlYfK
here is the heatsink of my Asus tuf with the 8 screws I am unable to remove

CPU - i5-8300h
Gtx 1050
RAM unspecified but 2 sticks of 8 gb and 2667 mhz