Help i hate it?

im 15. i took a cab & i didnt have money. i got out & asked mom if she had money. she didnt. i told the cab driver & she was pissed. mom came out & yelled at me & told me to go to my room. mom talked the cab driver out of calling the police & arresting me. i had no idea ditching a cab was this bad. now im ground until next saturday. now tomorrow is another day wasted of my life. i was supposed to go see my gramma. now i cant cuz im grounded. help i have to sit in my room all day without food.