Juan deals with the trauma of his transformations and the fear of what he is becoming (a Chupacabra).
If you were looking for an academic or a review of this specific episode or the series' themes (such as genetic engineering or identity), I can certainly help with that. The.Imperfects.$01304.One.0f.Us.720p.W3B-DL.HIN...
Specifically, this refers to of the Netflix sci-fi series The Imperfects , titled "One of Us." Episode Summary: "One of Us" Juan deals with the trauma of his transformations