Hi hedge, have just read all your previous thread and this one. You know I like you, I have PMed you before and have posted on your threads before.
You need to do something. This cannot go on. It CAN@T GO ON.
It is utter madness! How long until you are alone with the kids and have a migraine and black out? If it happens in the morning no one would find you until 6 when he came in from work.
What happened when you snapped with him was awful, it is good you know that. You need to ensure this never happens again - ever. What steps have you taken to ensure this?
You mentioned respite - have you followed this up since they said they would refer to the other team? Do you know how much it would cost them to have 4 disabled children in full time foster care? They do not want that - outline this to them. In order to be able to continue to care for your own children you need support.
This sort of thing has been coming for a long time with you, frequesnt threads each more and more desperate, it has been clear for ages that you have been close to snapping. And you did. The important thing now is that things change so this never happens again. because if it does then it would be a very different situation.
You keep saying "Ican't try this because of X or I can't do X because I feel anxious about it" thr trouble is it is not working the way it is so something has to change, it just HAS to. Does the youngest ever really get out the house? Something has to change in this situation to give you all more normality.