This 19-year-old sounds a lot like me. I started thinking about suicide around the same age and made an attempt a few years later. My brain will start wandering and can go down a dark path if I don’t keep myself occupied; my computers and video game systems help with this. I’ve had a meltdown when my computer wouldn’t work but I eventually calmed down and worked out the problem + how to fix it.
I had enough trouble keeping my grades up during high school that I knew college would be a problem. I tried to get an education via enlisting but that didn’t work out. Ended up living with my brother the Army vet and managed to land a government job in a mail room. They let me go shortly before I finished out the year, partly due to my having slipped on a patch of ice and wrecking my back. Unable to continue renting rooms like I had been, I ended back in my brother’s apartment. He came home early after a really bad day, caught me misbehaving, and kicked me out.
Being in a homeless shelter for ~9 months turned out to be a blessing. I was able to go from there into a group home program, which led to an adult day program and work rehab. One part time job I landed via work rehab led to being hired as full-time permanent in a different office. I’m still with the same employer 27 years later.
TL/DR: are there any group home programs in the area which would take this young man and would he be willing to go?