Hi Kliev and welcome.
I took my son to the ER the first time when he was 6. He had not been "diagnosed" but we'd been dealing with tdocs for 2 years by that time. No psychiatrists. What prompted me to take him (very much against my husband's wishes) was that he'd been raging for days on end, hitting, kicking, spitting, biting. Hindsight being 20/20, the kid was ultra rapid cycling - up and down and up and down multiple times per hour. I was 7 mos pregnant, and his very intentional kick to my belly was the final straw. I just couldn't contain his violence.
He was admitted extremely frequently over the years - when he was living at home, we'd end up back at the hospital about every 3 months. He had 1 admit for a bad reaction to a medication, I think 2 or 3 for self-injury, but the rest were all due to extreme violence towards people. All but the first admission and the bad medication reaction, he was transported via ambulance - he simply was not safe to transport myself.
Yes, getting him admitted that first time was a good thing. I *finally* got someone to really hear what was going on in our home, plus they got to see him in action. We got a psychiatrist, got a starting diagnosis, were able to start medications (which was *not* my goal/plan at all, but there were medication combos that were helpful for varying periods of time *and* going from full-blown raging multiple times a day to every couple days, then weeks, then months.... well, that was good).
The downside of admissions is that your kid is not going to be "cured." He will be stabilized and sent home to continue outpatient treatment. I thought they would be able to fix whatever was going on - sometimes they can tweak medications or hook you into resources that will make the behaviors more manageable, sometimes not so much.
There's not a secret therapy or special medication that they can do in the hospital that will solve the problem. Unfortunately, the nature of bipolar is the ups and downs. Absolutely, for violence or self-harm, the hospital is the only way to go, in my humble opinion. Suicidal threats also merit hospital evaluation, even at this young age.
Is he being treated by a psychiatrist? Have you discussed admission with- whoever diagnosed him?
Again - welcome, and I'm glad you found us, though sorry your boy is struggling right now.
P. S. - I have to ask - autocorrect really got you, and I cannot for the life of me figure out what "guns and seabirds" are - I get the guns, obviously, but ... I'm drawing a blank on "seabirds."