Drink lots of water - esp when breast feeding.
Make sure before you start to feed that you have a wee and have everything within arm distance - phone, tv control, snack, drink etc.
Put your water in a sports bottle that you can have on the seat next to you - took me a month of using pint glasses always out of reach on the floor to work that one out!
I don't remember it stinging to wee after birth but remember to pat dry instead of wiping if you had stitches.
In the early days it can feel that you're always feeding but it doesn't last - so start recording your favourite shows now to enjoy as before long you'll be wishing they took longer so you can enjoy the rest.
Go to the bf support groups. Many people need the support and guidance to get things started. I found them really good to improve my confidence in taking dd out alone (more worried about using the car seat) and also about bf in public. Also really good for meeting other new mums.
Have a lesson on how to use the car seat/pram/travel system before baby is born. Easy when you know how - not when you have a screaming baby in your ear.
Enjoy the cuddles and don't take it personally when they cry.
Good luck