Caricature generally refers to a quality that is exaggerated from a person to create a mimicry of them, usually for the purpose of comic relief or parody.
When Elnora uses this to refer to herself, she might think that she has changed so much from who she thinks she is, to the point that she now sees qualities in herself that have become too overly exaggerated or overly defines who she really is. She finds herself becoming a weird and grotesque version of the person she used to be – in short, she finds herself unpleasant.
