Give yourself some credit woman!
Remember a few nights ago when all four of you were just sitting around? The house was clean, the tele was off and you were all loving, laughing and making the baby giggle. You were the epitome of the ideal family, it was everything you ever wanted. Remember that feeling? Well try and feel like that now; even though the scenario if very different.
The dishes are piled so high and the house is such a mess even Kim & Aggie wouldn't bother. The baby just wont settle despite being fed, clean nappy and just woken up from a nap. Your eldest has just kicked you in the stomach (emotionally) with the phrase "you love the baby more than me" and is now screaming at the top of her lungs because you are fussing over the baby (because she wont settle) and not her. Your husband has walked in from work kicked his shoes off and asked "What's for dinner" and you smell because the last time you showered was yesterday, was it yesterday? What day even is it? Oh god.
In the midst of this and whilst you are tempted to throw everyone out the house and lock the doors or leave them all and head to the nearest airport - remember that feeling. When things are great and you feel like the luckiest person in the world. When you can run this house without breaking a sweat, when the toys are put away and the washing basket is empty (OK who are you kidding? That dam thing will never be empty but you get where I am going with this).
You are not two different people. You are the same awesome superhero mum now in the midst of the madness as you are when everything is wonderful. There have been bad days like this before and they came and went and countless wonderful days followed. This crazy, messed up, manic moment happening now is just temporary. Give yourself some credit woman!
Ask for help. Hand the baby to hubby, go to the loo for 5 minutes and breathe. Remember who the hell you are and that you got this mama! Order a take away tonight, the dishes can wait (and if Kim & Aggie want to come over invite them), the time you would of spent cooking spend with your big girl colouring in, leave the baby with daddy and you know what - you will be back to feeling like the luckiest person in the world again pretty soon.
Until the baby sh*ts and he hands her back but until then you got this mama. You are in control. Never forget.