[Private]
If I may, Madame, it is quite common for some new parents, especially mothers, to feel this way at times. It does not mean that there is anything wrong with you or your abilities to care for your daughter, simply that you have a medical condition. There are some hormone levels that drop for mothers after birth, and they drop really rather quickly. When you were pregnant, those hormones were rather up. As your body adjusts to the fact you are not pregnant, those hormones drop a lot.
The good news is that you can get help for this. There are medications, therapies, and a lot of things that can help you to get better. It would be a good idea to tell your doctor about these things, so they can help you decide what to do. It really is all right to get help early on, and you are not a bad mother because something inside your body changed, and rather rapidly. I can promise that no one will think this is your fault.