Is my 3060 dying?

FPS fluctuating in a linear wave fashion. up and down consistently in waves. regains max fps when looking down at the ground.

used to run 200+ fps on 1440p max settings, now struggles even at 1080 low settings.

display stuck when set to full screen (game still runs). only windowed or windowed full screen works.

my specs are Legion 5 Ryzen 7 5800H, rtx 3060 Laptop.

is my graphics card dying?

ANY help is appreciated as this laptop is the deepest sentimental valued thing i own.

cheers.