She dies last

One fleeting moment and my whole world ceased to exist. Until recently I deluded myself that if I walk three, thirty or more kilometers, I will find somebody to talk to. In vain. I just damaged my soles. All the mankind was wiped out, I survived, having no idea why ‒ I am just a random teenager with acne spots.
I have been there, wandered elsewhere, created wooden dolls to talk to.
I gave up. Decided to bury myself while I am still strong.
Looking for the last time at the grave marker I cursed my fate.
Hope dies last.