Re breastfeeding - if you're having an elective make sure you discuss with this your midwives repeatedly (you'll have several - recovery, theatre, pre-op) and make sure they understand that this is a priority for you. Asking for skin to skin contact in theatre does make a difference - if only because everyone is aware that it is very important for you & will they will forced to interrupt their normal routines & help where necessary. It can also go in your birth plan for an unexpected/emergency section if you write one.
After I went up to the ward I barely saw a midwife though - HCAs did pretty much everything.
I always take extra pillows with me - really helpful for feeding in the first couple of days - rugby ball hold is good because there's no pressure on the wound & you can request a bassinet cot which clips onto the side of your bed so that the baby is really close & it makes frequent feeding easier. Both times I have spent (literally) the whole of the first night feeding - I prop myself up in bed, put the dim light on & world service on the radio really quietly & just breastfeed - a private room makes in much easier. I also have all my visitors in after afternoon of they day of the section, but only dh the day after - means I can sleep while he looks after the baby.
Food is really dire, dh or my mum bring me meals & snacks & the ward is boiling (especially in winter) so it is really easy to get dehydrated, HCAs are great & bring litres of water.
I had my cannular out really quickly - certainly by the time I had visitors in the afternoon - if you're managing to drink enough & not puke there's no reason (in normal circumstances) that it needs to stray in. If they haven't taken it out buzz the mw & ask them too - often it's only in because they forgot about it/haven't got around to it yet.
Before you leave recovery make sure you ask the mw (if they haven't told) what kind of stitches you have - they don't always use dissolving stitches & the information that they'll need to come out at some point often gets lost on the pn ward.