Oh hun there have been so many women who have felt the same way as you and there will be more to come after you. It sure isn't easy at times and I remember being the same as you with my first bub and it got to the point where DH just took him for a long drive because he would always sleep in the car so you could drive for hours before he woke and he left me at home to have a decent stretch of sleep and I tell you what it made a huge difference to my mental state at the time. I had a nice long hot shower too before they came back and I felt like I'd had a release kwim? We also had loads of issues with breastfeeding too and that didn't help at all either. I remember too on day 4 at home that I was beside myself crying and telling DH that I wish it was just the two of us again and it was just too hard and I didnt' want him anymore.

THings you can try would be to get DH to take her while you either sleep - get him to take her out of the house so you aren't tempted to get up to her if you hear her crying - or just do something that will recharge your batteries, hot shower etc. The other thing you can do is have a bath with her, make it nice an deep and jump in with her and just have a play and get her in a good frame of mind and then try feeding her. You will both be a lot more relaxed and it might be easier to get her to take the breast.

I'm really sorry that you are feeling this way though hun, because you just feel so awful about feeling like that and wondering if you amade a mistake, but it DOES get easier and whenever you need a shoulder to cry on or just a hug, there will always be someone here for you