This is all so normal and it really isn't published or talked about enough before baby is here and suddenly it feels like you're feeling now!
If you can, set up camp on the sofa and feed as much as she wants to, and once she is asleep, hand over to your OH and go upstairs and get some sleep. Let OH hold while she sleeps, and take it in turns. It won't be for long and it's not easy but it's so good for bonding for Dad too! Even if he takes her out in the pram, it just let's you have a break. It is so hard.
Both of mine were the exactly the same. My first I just was in the sofa or in bed for the first 2 weeks, feeding, snoozing when I could, watching box sets and eating crap, I ended up enjoying it once I got my head around it! With my 2nd, I didn't have the time or patience for that, so he was in the wrap sling basically for the first 4 months of his wee life! He was extremely content and I could look after my daughter and do a bit of house work and stuff!
If you're not enjoying breastfeeding then there is no need to force yourself to do it, there's no harm in stopping and no failure at all, that's why formula is made. but if you are determined, do stuck at it and it's so worth it in the long run, and it does become enjoyable eventually.
Hang on in there, you're not alone! X