Winter apocalypse

Okay , so you were just kicked out from the building that you were living in during the winter apocalypse and the temperature outside is -150.And there is winter zombies , although not very many and all you have on you is one loaf of bread , half a bottle of water , and and a winter coat Which won't keep you very warm and everyone in this world has unlocked abilities around a few days after the Apocalypse. Happened, but you haven't unlocked your ability yet. And after about an hour and 2 days of walking, you take shelter in a building with no one in it and after multiple hours , you unlock your ability it is a dome that you can lock and only you can let insertent people in impenetrable dome That stays at the perfect temperature to grow plants and just melt the snow and it lets nothing dangerous in I'm gonna paint on stock.No one would imagine that a silly and naive boy, but currently, it is only 1 m by 1 meter. And by two meters tall you have a store system Too but you don't have any money to buy Stuff from the store and you can get system points or money from killing monsters , but you don't have any weapons and the barrier , you can set it to where it follows you and you're perfectly in the middle