Christine Purkis 
Sea Change [EPUB ebook] 

Theresa Bird thinks her life sucks: she misses her dad, hates her step-dad and her little sister drives her crazy. But with a can in her hands things don’t seem quite so bad — or boring. For fifteen-year old theresa the odd drink is about the only thing that makes her world seem bearable. Trouble is, her mum’s blown a gasket and now Theresa’s in a whole heap of big, BIG trouble. . . .