When someone offers to help you always say YES. People love to do stuff for you so let them. Try to get them on the same schedule by feeding at the same time. If you don't then your day will be feed one, burp, change, repeat. Put things in central locations in your house. I had a set up to change diapers in the living room (where I was spending most of the day) so that I didn't have to walk into another room do change one of the 9 million diapers newborns make ever day. It was temporary only being there for a few months but it was great. I also had clean clothes in a laundry basket and a basket for dirty clothes so I didn't have to go anywhere to change an outfit on the twins.
When people come over don't feel you have to entertain them. Let them know that right now you are overwhelmed so if they come they are on their own. Don't feel like you have to go places and do things to be a productive member of society. For the first few months the only thing you need to do is be a mom and do the things required to keep your kids fed, dresses, and cared for.
Mostly just know that you'll feel like a hero, a failure, and a just ok mom every single day. That's ok. You are doing your best at a difficult time. Be kind to yourself. They are too young to hold anything against you as infants anyways. lol. Best of luck at a fast labor, healthy babies, and a quick recovery.