That looks like maybe a bottle fly. Googling indicates the adults last 50 to 60 days¹.

¹ https://www.researchgate.net/publication/344275278_Longevity_of_Adult_Lucilia_eximia_WiedemannDiptera_Calliphoridae_Under_Standard_Conditions

Your disability is not your fault.

The Thursday Murder Club and subsequent books in the series by Richard Osman. Everyone’s decent, reasonable, and a little ridiculous. The stories are neatly tied up at the end of each book. I’m actually looking for books like that right now myself.