What's the Name of That Book??? discussion

Hi, I tried so many different things before this, in fact, I was committed to scrolling through 60,000+ books on Libby to find this book. I read it sometime between 2019-2022 I have a vague idea of what happens I have a list of things I'm for sure on though
The cover features a fallen bicycle.
The story involves multiple points of view (at least three).
One early scene is set in a lunchroom.
The plot centers around teens in a mental health facility, possibly including twins(who were girls).
The book includes content warnings at the beginning.
other than that it's kinda lost I think that after a few chapters, they get out? and like run into a tank maybe but that's 100% not guaranteed.
I also thought the cover with the fallen-over bike it was raining or wet outside or maybe just dark outside. I need help finding it I thought I read it on Libby and it was a DNF. I started reading it at a rough time so I just couldn't get far. One last thing I think I remember is I think there was a guy who was a little creepy to someone maybe one of the twins.

I found it, my dad woke up from his nap and turns out he’s like a blood hound when it comes to finding books. It’s called at the end of everything by Marieke nijkamp.