I did have a few lunches with our sleepy jaundiced baby but mostly I didn't leave the house very much because of breastfeeding, or at least not alone. I had several failed attempts where by the time I was trying to get the baby into the sling they started to cry for their next feed and I just cried too as I was desperate to get outside and off the sofa.
One feed seemed to just blend into the next and it got better when I accepted this and just watched endless TV and ate endless biscuits whilst feeding.
My baby like many others was not a fan of sleeping anywhere but on someone's chest so we did have to sleep in shifts for a while. Some newborns sleep well but mine did not. It's pot luck. The sleep deprivation was extremely difficult and was made worse by my stitches breaking down. I was in a lot of pain but couldn't take any recent painkillers because of breastfeeding.
We had a lot of difficulties with feeding in the beginning and had to do 'triple feeding' for a couple of weeks. This was brutal but week by week the feeding got better.
I'm only a couple of months past the newborn stage and it does feel endless when you're in it but it's over in a flash.
Amongst this there were many lovely times and I did slowly fall in love with my baby more each day. I treasure the photographs I took. Take plenty. Around the 6 week mark we got our first smile and it's just got better and better from there.
I had a terrible pregnancy like you and I did feel a burst of energy in the beginning of huge relief just to not be vomiting and so uncomfortable anymore. I never experienced the 'what have I done' feeling although I had expected it from hearing about it on here.
Good luck it is a very special time (maybe more so in hindsight depending on your experience) x