You have had a horrible, horrible time, been attacked and have made a huge life change. Of course you are feeling crappy and hardly able to do anything today, you poor thing! It is not because you are crap and can't cope without him. It's been a massive shock to the system and you need to gie yourself a break; could you be super-efficient and hold it all together if someone very close to you had died? No. So treat it like that.
In a way, it's like bereavement. You finally know that the person you thought he was, who wanted and needed him to be does not exist and never will do. Your relationship is dead and gone. There is mourning, too, for the person you were before he tried to destroy of you with his abuse. The good thing is, those can come back, and more.
He has sytematically emotionally and mentally abused you until you think you can't cope without him, that he is the better parent, that does everything and does it better than you, that you are nothing without him, that you are useless, lazy, stupid, worthless, a bad parent, etc. No wonder you can't feel good about yourself and are struggling to cope. But you know what? Even if you were all those things, it'd still be abuse for him to have told you and made you feel it the way he has done!
You know what else is hard? You get so used to hearing this shit about yourself, to being abused, that you don't know how to cope without it! It's what tells you who you are, what you are, what to do, defines you. But it is a voice that lies, that hates you, that wants to destroy you. Learning to ignore it and find a voice that speaks the truth will not happen over time.
Be kind to yourself. I know you've not experienced that for so long that you possibly don't evennknow how to. Try to think of how you'd treat your DD if she was older and in yor position. Then extend that love and cRing and understanding to yourself.
A lazy day never killed anyone. DD might well enjoy just slobbing about being with mummy not doing much. Let yourself be.