Oh god what do i do. my father is gone and im left home with my Little step sister?

i just got home from getting drunk and my father and step mother were gone and there was a note on the table that said. gone to Hawaii see you in two weeks. what the hell do i do i am left home alone for two weeks with my little step sister lin (WHO I HATE) now what do i do. i love getting drunk and im drunk 85% of the time and im afraid that im not going to be able to get drunk because of her. so what do i do