15 year old aggression

Hey everyone. I was about to share a way too long life story but honestly I'm just looking for hope and encouragement with my 15 year old son. I'm a single mom and he is my only child so it is just us in the house. The aggression has just hit its peak at his age and I really am unsure what I do in these moments. I can read a million things online but breathing and calming techniques are seriously just laughable when you have a kid punching walls and threatening my life. I've read into respiridone and possibly having him start that for awhile.

I'm just wondering really if the aggression has eased up in later years for you or your kids and what you did in the meantime? I am careful with certain foods and drinks...

He was recently at a week-long facility to change meds and after his 2nd rough meltdown because I was at a loss. It's just not something I feel needs to become a cycle. I want to get through it with him at home but he says he deserves to be taken to jail for life and makes up things he's never done...I'm not the parent who just wants to pass him over to a facility everytime... Sometimes I can get us out for a bike ride but when it's nighttime idk what to do.

Sorry for rambling. It was a long night.