What do I need? from scatter brained

So I have 73 days left until the little princess is born but i cant help but feel i havent a clue what i do and do not need. people keep telling me not to worry that i will get lots of gifts but I dont have many friends or family so I cant see that happening. I need an exactt list of must have essentials! how many bottles, what sizes, should I buy clothes and nappies and if so how many and what sizes? Should i get blankets etc? I always feel i'm forgetting important stuff.

I have the following:

A baby bath

A bath support cushion

a bag of newborn clothes

a bouncer

one box of baby formula

one small pack of newborn nappies (not the smallest but the middle sized)

The following has been promised to me:

a cot

a matress

a walker

possibly a moses basket

a sterliser

a sling

Also I have my pram partialy paid off through mothercare which includes car seat.

What else do I need? Help!!!!!!!!!!