Oh Dear, I truly understand how it feels to be awake after an exhausted day, To start with, Just try to keep her active throughout out the day, so she will sleep well at nights, when she takes a nap at day, see to that she sleeps no longer than 2 hrs at a stretch, When she is active throughout the day, she will sleep well at nights,and feed her at nights even if she does not wake up for night feeds,set a time frame for feeding at night alone, as I would do to my daughter, she never use to wake up at nights, but I will wake up at 1 or 3,will feed her and change her nappy if needed and put her to sleep, then she would be up only by 7 or 8am in the morning, for next feed, hope everything will go on well. try out these tips and see if it works.