a shadow of your former self
a shadow of (one's) former self
Someone or something that has changed dramatically to become decreased in vivacity in some way, often following negative circumstances or some traumatic event. Ever since Tim was in that accident, he's been a shadow of his former self. She's so quiet now, like a shadow of her former self. Does anyone know what happened to the bubbly girl we once knew? Many of the town's residents moved away, leaving it a shadow of its former self.
a shadow of your former selfFORMAL
1. If someone or something is a shadow of their former self, they are very much less powerful or impressive than they used to be. Our ninety-year-old dad was but a shadow of his former self. But the side which played such thrilling football last season now looks a shadow of its former self.
2. If someone is a shadow of their former self, they are very much thinner than they used to be. I couldn't believe how much weight she'd lost — she's a shadow of her former self.