Hey Lou, Good to hear that you are thinking about new challenges and fun things to do.
I know that night-time feeling. I push myself to do stuff I don't really want to do - i.e. like cleaning the oven!! - when I feel like this, just to keep my mind from ruminating.
Sorry to say this but I'm getting some solace from hearing abut your son's behaviour. He sounds just like my D19. I thought I was going through this alone, but no, maybe it's just typical upset teen stuff?
Good to hear, too, that he's having a good patch atm.