Saving 6 by Chloe Walsh

Twelve-year-old Joey Lynch becomes his family's protector when his brother leaves. While battling addiction and self-loathing, he forms a complicated friendship with his boss's daughter Aoife.

This book contains; alcohol/addiction, anxiety/depression, bullying, child abuse, derogatory terms, dubious consent, drugs/addiction, emotional abuse, extremely explicit sexual content (per the author), gore, lying, murder (attempted), physical abuse, potentially patently offensive content, potentially prurient content, profanity (excessive), rape (mentioned), self-harm, sexism (minor), sexual assault, sexual nudity, smoking (minor),stealing (implied), suicidal ideation, torture, toxic relationships, vaping, and violence.