Hi Notsostrong,
That’s good news he has finally moved out. You were alone basically living on your own anyway as he was always up in his room and only engaging with you and the children to put you all down and criticise.
You still have all the responsibility of minding all the children, house etc on your own, but you were ding that anyway, at least you won’t have the chaos and negativity that he brought with him. Just take it One Day At A Time. You will have various emotions and just accept them. How you feel and think is normal and post on here and you will move through them.
The break from him will give you a bit of head space although he probably will be in contact to upset you in some way or another.
Its very hard to lose an abuser, they keep coming back, but its a start that he’s moved out. And his mum will probably do everything for him and make him comfortable so he won’t think of coming back.