How do I know what genre I'm writing in?

My novel is about vampires with mental health themes. There is a small amount of romance in them but it is certainly not the main plot. The story is about a vampire who succumbs to a condition called The Tediums, which is basically dementia for older bored vampires. It's her interaction with her daylight worker and one of her sireborn that is the main focus of this book.

All of my books are set in a small town that was created by a witch, a werewolf, and a vampire as an experiment and as practise for the supernatural races to perhaps come out to humans.

Even though its vampires, there is some bloodsucking and violence but again, its not a huge part of the plot. the book really is about relationships and managing mental illness well.

What genre would peope call this? I'd like to get a genre definition that niche's it down as much as possible/