@Former-Member
My natural response to a busy, busy mind, particularly when the thoughts are not helpful in nature (!) is to respond with physical activity of some kind ....
Daylight hours when it's not brass-monkey weather - go for a walk, vacuum the house, make spitballs and fire them at a photo of someone who has annoyed you recently (nobody said you have to be mature about it !!)
Daylight hours when it is brass-monkey weather - cuddle up under a doona in the nearest thing to pyjamas you think you can get away with and watch a movie, or plug in head-phones with music that you have trouble keeping still for, and dance .... if anyone us watching, dance with a duster in your hand pretending at least that you're working.
Night-time hours - cuddly doona with a movie, or long hot shower and cup of tea, or phone a friend.
Just get busy with something that moves your body or your mind onto an out-of-your-own-head task, but try to be strict with yourself and make it not-negotiable to do so ....
Might help to have a go-to list like an action plan.
I hope something of this us helpful .... I know there's low motivation involved, but maybe you can put marbles in a jar every time you achieve pulling yourself out of the doldrums, then take your kids out to something special when the jar is full, do everybody gets a treat out of it ❣