No hun she chose you. You are her best parent, and while it doesn't feel like that at all right now, I totally get what it does feel like. I have lived through that. I cannot remember really the first 12 months of DD's life.

You need some support. Now.
You aren't doing anything wrong either.
Can you ring the after hours number for your local community health? Your GP? Heck even the maternity unit where you had bub?

Let your DH read this post. And the responses of other women who have BTDT. Tell him you can't cope. He may think it's phooey at first, but trust me when I tell you he will be your best ally.
I truely hope you got a bit of sleep as sleep depirvation make everything 40 000 times worse.

Keep posting hun and let us know how you are and what you need.