I had to google to see what those things are ahahah... You complain about the doll in a apocalyptic scenario, but you bought those things? Were you locked in a bunker alone with tinned food and water because of a nuclear conflict?
There are conflicting theories of how long a nuclear winter will last, some say 25 years, most say 1-5 years. If the 1-5 year scenario is correct then it is survivable, if you are far enough from any blast zone and have access to food and clean water for 1-5 years. And access to enough energy like wood to keep you warm for that time as well. You would have to prep beforehand.
Just an idea: if the survivors manage to get a power source working, like a nuclear power plant, or wind energy or hydropower plant, then they can grow crops using artificial light (ie. "vertical farming")... Of course some purified water is needed as well... Good luck, losers!