car, yes, i would. my sister would never allow it. >> reporter: phoenix prices have skyrocketed in the last year. prices that katia can afford are too far way. gassing up is too much. i would imagine at this stage in your life it's -- >> it's really hard. it's really hard. it's -- it makes me feel useless. like i'm not doing enough. >> reporter: katia says she's at stage one panic level. and the thought of what happens next makes her quiver. ed lavandera, cnn, phoenix, arizona. >> ed, thank you. more than 25 million in the south will be under freezing warnings tonight. how cold is it going to get?