Would I drink a potion that would make me live forever at a certain age?

Ummmmmm...
I'm conflicted.
I'm alright with dying, but I can't do aging. I just can't grow old. I CAN'T.
I want to live a long time because I want to do a lot of good in the world, but I would hate to live forever and live through the end of the world and the sun burning out and the second ice age and nuclear wars and stuff... NO JOKE WHAT WOULD HAPPEN TO ME IF I LIVED FOREVER AND THE WORLD ENDED? Would I still be alive floating around in space? Would my body disintegrate but my consciousness be scattered around what's left of the universe??? THAT WOULD SUCK, MAN!
Get that potion away from me. I don't want it anymore.