It's difficult because we don't know which areas you struggle in specifically. I'm adhd, but I found it quite straightforward to set a routine because I like routines. I could also organise feeds, laundry, tidying etc. because I like to be busy and active.
I would try to keep things simple and not over complicate things by worrying about lots of equipment and stuff. I did cold water sterilising because it was easy. Plastic backed bibs are good because they keep the baby's clothes dry if it dribbles. If you're going to breastfeed then the baby will pretty much set your routine for you and you'll just be led by them. You don't need lots of baby clothes, just stick them in a nappy, vest and baby gro for ease. Cardigan on top if it's cold. Don't feel you need to dress them in little clothes every day. Don't let anyone make you feel bad for not dressing them, as long as they're clean then it's fine. Clothing is often restrictive and uncomfortable anyway.
A sling might come in useful so you can move around the house and go outside without being hampered by the baby wanting to be picked up.
I put mine down to sleep on a real sheepskin fleece - they were winter babies - as it's good for their neurological systems and helps to calm them. You can use them year round, but don't overdress obviously.
Don't be afraid to use a dummy. It helps to keep their airways open when they're asleep. They're easy to wean off when they're older.
Online shopping will obviously come in handy so make sure you have an account set up ready if you haven't yet got one. If you formula feed make sure you don't run out of formula - get lots in once they're settled on a particular type.
Order in some easy to prepare food or even ready meals. The first few weeks are quite tiring and it's a chore having to prepare food.
Make sure you have lots of healthy snacks and drinks in so you can keep your energy up.
Biodegradable cleaning wipes are handy for quick clean ups, spills etc. Spray cleaner and kitchen roll is quicker and easier than cleaning with a wet sponge.
Do any necessary jobs like repairs or cleaning the oven, windows etc. before the baby comes.
I found Colief drops to be a massive help for infant colic.
Keep everything together in a plastic box - nappies, wipes, bum cream, thermometer, wash stuff, bibs etc. so you're not searching everywhere for things.
Which areas might you struggle with?