To ignore the world and live for a little while in a safe cocoon with your baby. Don't Google, don't even look at a clock, it's not needed with a newborn.
They cluster feed, sleep erratically and have trouble with their newly functioning digestive system. Always try to sleep next to them when they sleep to catch up on yours.
Try sometime feeding lying down, it's so much easier for nighttime feeds. To help the latch, squeeze your nipple in, rather than out. You are aiming to get enough into the baby's mouth so their mouth covers your areola. Then the nipple goes far enough back to be massaged/ pressed against their pallet and you don't get sore nipples.
If your let down reflex is super keen don't be afraid to use a nipple shield for a few weeks, it stops them choking and spluttering.
Don't have visitors for a few weeks if possible. If people offer help ask for meals. Thinking about cooking nutritious food when your brain is baby scrambled isn't easy.
Get in decent nipple cream, back up feeds in ready to heat cartons. Steriliser. Infacol. Decent nappy cream. It's easier to prevent nappy rash than fix it once they have it. Sudocrem is no good after skin breakdown. Bepanthen is good.
Lots of muslins, for you and baby. And an easy to wear sling as tiny babies don't like to be put down.
A portable bidet pan for over the loo, it makes it easier to keep post baby parts clean without having to bath several times a day. Also a hairdryer on cool for drying afterwards.
I bought some big comfy bed pillows for propping myself up.
Stock up on easy to eat, nutritious short cuts and snacks.
Forget housework.
Top tip is don't get dressed, then if you have unexpected visitors they don't stay long.
Trust your mum instinct, it's spookily accurate. You really do know best.