Hello,
Firstly pretty much everyone needs help and support when their first baby is born so if it's available to you within the family or friends please accept it. Or, indeed ask if it's not forthcoming
.
Have a chat with both your midwife and health visitor as they might well have some suggestions ( HomeStart is great), too. SureStart Centres can offer a range of things, too. Also, just by them knowing they can just be a bit more understanding.
Now try to get home organised while you have the time. Get internet shopping set up if you don't already have it. It will save untold stress and time. Stock up on basics. Make a meal plan for ie each two week period. Very simple food is just as nutritious as more elaborate. If you are feeding you need access to very regular meals that take minutes to prepare. If you have space in the freezer do some batch cooking and freeze. Or identify some good quality ready meals.
Can you afford a cleaner for a couple of hours a week? Just having the floors, kitchen and bathroom done weekly is really helpful.
It sounds as if you might need to do a lot of the night wakings so decide in advance that you will rest in the daytime when you can. If your DH is up to it maybe decide what jobs around the house will be 'his' ie the ironing.
Hopefully you have your bag packed by now. Well, also think about coming home...stock up baby items ( not nappies though because some brands don't suit). Have enough basics like muslins, vests etc that you don't have to be washing constantly. Have stuff like your bedding and towels done so you don't need to worry for a week or two when you get home.
Finally, yes get organised but nothing truly prepares you so just go with the flow. You will soon be empathising with chronic fatigue! Try not to get snappy with each other.
Hope that helps. You'll be fine. Enjoy your baby. 