If I still had my family,I guess my family would still be controlling and I wouldn't be allowed to do anything crazy, we would have to stick together and they'll probably be quiet, it could be depressing and unbearable but maybe we'll open up to each other for once and maybe we could have a comforting talk, express with each other the things we held inside.
If I was all alone, I would spend as much time outside as possible, walking, walking, walking to every street and building, observing the ever more unpredictable world around me, breathe in life as much as possible. The more time passes, the more there might be sad people, lonely and terrified people crying and shaking wherever I'd go, I'll spend as many hours as possible hugging and caring for as many strangers that need a friend that they might not have, I wouldn't want them to be so distressed, I'd be able to express the affection I couldn't before as well that way. I'll want to focus my attention in offering companionship and comfort to as many people as possible, try to help them feel less suffering in their fear of death.
Then again there would probably be dangerous people let loose, would I risk getting hurt and go out anyway or lock myself and still probably get hurt by someone anyway? I guess I'll grab things to defend myself with and if I get hurt or killed anyway then, oh well.
Would there be deafening chaos or peaceful silence in the streets? Would parents tell their small ones that the world is dying and hold them tight as they cry or would they want them to be happy and let them out to play a little more than usual? Would all the playgrounds in the world be filled with laughing children then? I'd probably ask myself many of these types of questions, I'll probably want to spend time curiously finding out what these answers are first hand.