Addiction, trainwrecks, fucked up relationships, suicidal, dark real times.

Trainspotting

You could try Shuggie Bain by Douglas Stuart - it has everything you mention and is also beautifully written.

Thank you!

Came here to recommend this. Read the author's note last. I sat quietly wth this book in my lap for a while after I finished it.

You may as well add {{Young Mungo}} in there as well, very dark and fucked up.

The bell jar - plath

If you want some classic lit:

Infinite Jest by David Foster Wallace Lesson Plans

{{Infinite Jest}} by David Foster Wallace

Sabbath’s Theater is so funny and so fucked. Definitely my favorite Philip Roth novel.

Read any book by Wally Lamb - the man is a genius at writing real life.

hangman series by jack heath. a complete mindfuck

Paper Castles, a Man Called Ove, the Sympathizer by Viet Thanh Nguyen

How to stop time: heroin from a to z by Ann Marlowe

Love Life Walk. By Steven Fugate.

{{Requiem for a Dream}}

Requiem for a Dream

Oh man, this is right up my alley. I’m just gonna throw out a handful of authors rather than titles, because when it comes to books of this nature, I could go on for awhile.

Someone else already mentioned Shuggie Bain. I'd also recommend The Fall of '79 by Lee Lewis. Disturbing and dark.

{{Marbou Stork Nightmares}}

Marbou Stork Nightmares

Love Me Back by Merritt Tierce — a blistering novel set in high dining in Dallas.

Ohio.

J.G. Ballard's {{Crash}}

Crash (Crash, #1)

Girl In Pieces is literally everything that you have asked for in the title. It is a fantastic book!!

Dopefiend by Donald Goines

Mabye try more happy than not? It’s a little bit romantic in a way but is quite depressing

{Nothing by Janne Teller}

Nothing

All of Chuck Paluhniuk’s books