"Dirty Little Secrets" by Cynthia Jaynes Omololu

Sixteen year old Lucy has always avoided having friends coming to her house. It's not that she doesn't have any friends, or isn't social. It's because her mother has a disease known as obsessive compulsive hoarding. Her mom can't throw anything away, and their house is so full of stuff and garbage, it's beyond shameful and embarrassing. Lucy is counting down the days until she turns 18 and can legally move out.

But she may not have to wait that long. Lucy's mom unexpectedly dies in the house, and Lucy is mortified. She can't have the paramedics come to the house and see the mess and garbage they've been living in.

Lucy is desperate to clean the house and keep the family secret safe