Are we allowed to swear on this thread? It's so fu**ing shit that we have to put up with all these symptoms - it just seems cruel to me.
I must admit I've had a pretty ok-ish week, and at the moment, I seem to be less ragey on the outside in that I'm able to control the floods of fury much more, but, I'm so changeable that I don't know from one day to the next how I'm going to be, and neither do my DH & DCs, of course.
Not so long ago, I went through a really ragey period. I can't even remember why (obviously there is no justification) but in one week I ended up smashing a plate in the back yard (flung it as hard as I could against the concrete,) and on another occasion, smashed a pan so hard on the cast iron hob, that it actually smashed the metal
.
Sudden it sounds horrific, I'm sorry you've got to face all that over Christmas. I'm just trying to think of suggestions that could help you get through it.
Will you be able to get out for an hour or so for a walk and let the DCs have a run around? You could even sell it to the MIL as if you're doing her a favour 'Me and DH will take the DCs to the park (if there is one) so that you can have a bit of peace and quiet'.
I don't know how many children will be there in total, and it might not be practical, but it might be worth trying to casually organise it in advance so that at least you know you've got some fresh air and a break from all the adults to look forward to.
The pressure I feel for my DCs to behave over Christmas for other people's benefit is very stressful, and it's nothing on the scale of what you're facing, so I really feel for you.