What would you do if you woke up one day to find you were the last person alive?

[Joods]

Okay let's reframe the question:

You have infinite food, drink, oxygen. You are able to live your whole life perfectly healthily. At least physically healthily. You just have no people or animals to associate yourself with. You're completely alone.

I say at least physically healthy because one of the questions is... would you go insane? Would you get depressed? Would you eventually commit suicide? Would you end up drawing a face on a football ala Wilson from Castaway?

Would you be bored forever?

Would life be meaningless without persons and animals there to keep you company?

Or would you find ways to entertain yourself and be happy while completely and utterly alone?

I'd want to die. At some point, I would be too old and decrepit to care for myself. Why get to that point and then suffer for who knows how long?
 
I'd miss my kids. I would miss their scents (yes, a mother knows what her kids smell like, regardless) their voices, their smiles, their hugs, their laughter, their companionship, their bickering, the little inside jokes we have, the games we play. I would die of a broken heart. 
That'd be the hardest thing about this. If my kids aren't here, in this scenario, I'd have nothing left to live for. All the food, water and oxygen in the world doesn't mean shit to me if my kids were suddenly gone.