After Rebirth, I Went Back to the Week Before the End

When the apocalypse came in my last life, I foolishly spent all my savings to help my best friend and boyfriend. In the end, they jointly pushed me into a zombie swarm. All the supplies I had hoarded were taken away, and I died of cold and starvation in the ice and snow. When I closed my eyes and opened them again, I was reborn and returned to the week before the apocalypse broke out. I also accidentally awakened a super large portable space power. This time, I saw through everyone's hypocrisy, decisively sold all the assets in my name, bought a single-family villa with a basement for the full price, welded and thickened the doors and windows, and installed high-voltage power grid security. Time is still in the space, and water and soil are available. Rice, flour, grains and oils, standing medicines, water purification equipment, fuel weapons, and warm clothes for all seasons. I stock up the entire space day and night. Have relatives and friends who have squeezed me dry come to my door to beg? The iron door of the villa was locked, and they were allowed to cry, beg, curse and accuse outside the door. I had endless supplies in the space in my hand, isolated from all the troubles in the outside world, and survived the long and troubled times alone.