apocalyptic world (you are the king of the world)

You were in a normal day like any other bored of the overwhelming work in which they looked down on you and after returning to your building it all started... an endless snowfall began to fall filling meters and meters of snow that could freeze anyone and bury the houses and after that came infernal heats where not even the meters of snow could resist the heat after a couple of days of that infernal heat You were able to survive in the building for a while prioritizing the safety of you and your girlfriend and luckily you survived 5 years like that until your girlfriend betrayed you to go with one of those who dominated the building When you thought you had died you woke up in your bed three months before the end of the world and with a special power you could create a warehouse with infinite space and that could conserve life within this space (I advise you to spend your money on all the food you can in addition to stealing food from the warehouse where you work and improving your apartment)