Yeah, everyone here has given great advice.
Baby carrier (we also had the baby K'tan, because it is less intimidating than a giant wrap, but a ring sling might work well too) so you can leave your house and keep your baby happy next to you, and so you don't have to lug a car seat around inside stores and stuff. We have a Lillebaby, too, and it is far more comfortable with a baby > 12-15 lbs, but that might get super toasty over the summer.
Lots of frozen meals, a meal train from friends, and a lot of snacks. Especially in the summer, the snacks are nice, because who really wants to heat up frozen lasagna when it is already hot out?
Netflix with subtitles so you don't wake up sleeping baby! If you're a reader, get an e-reader and lots of books - it is pretty much impossible to read a real book with one hand while you're holding a nursing baby, but you can balance a Kindle on your knee or the arm of your chair and use a pinkie to turn pages :)
I'm going to second this, too:
You basically don't have to do anything when it's your first baby.
It is not a badge of honor to be doing the grocery shopping three days after giving birth.
It was hard for me to have friends over and let them do things for me instead of visiting with them. I always let them hold the baby, and then hovered and chatted and got them water instead of taking a nap or a shower or loading the dishwasher or eating ice cream. So do your best to let people actually help you, instead of "hosting". Most people, especially other moms with young kids, really do want to help, because they know how tired you are :)
Also, I'm pretty introverted, so I was ok taking morning walks around my neighborhood and then sitting in my rocker with baby sleeping on my lap while I read/watched Stranger Things/napped for quite a number of weeks. If you're more social, though, look for a mom's group, or even go to a lactation group. The Wee Steps Clinic near my house holds those a few times every week - you just go, weigh your baby, sit around with other new moms feeding your baby, then weigh them again to see how much they ate. Mostly it's about sitting around with other people doing the same thing you are, though.
Good luck!