A few years ago I was going through a very tough time. I lived in the UK at the time and went to california for a meetup. After even more personal crap happened, I went on a walk seriously considering suicide.
Kept trying to call friends, family, nobody picked up, it was the hardest day of my life to get through. Next thing I knew I found myself on top of a tall building at which point I had the clarity to figure out I really should talk to a suicide hotline.
Unfortunately I didn't know the number and internet abroad was impossible to get at the time, so I ended up calling 911. Funny that, it turns out when you do that in california, you are considered a "danger to yourself" and must be arrested.
Still I figured it was the better solution and let the cops take me. I ended up in handcuffs for the day, was roughened up quite a bit, treated like cattle until I was sent off to a ward for 48 hours. My belongings were all taken and I was not allowed to call anyone overseas (where the only people I knew resided). When I pleaded for help, I was threatened to be put on indefinite hold.
Everything I remember about this sucks. It's honestly a miracle I got through it alive - CA tried very hard to help me kill myself. Had to fake being happy and well and all of this being a terrible mistake to be released when the time was up. I later got much better, higher quality help when back in Europe.
I learned one thing: Don't have mental health issues in the US. And if you do, don't talk to the cops. Never talk to the cops.