congratulations. you are in the eye of he storm -- baby still taking long to feed, and novelty of new member of family fading.
your daughter (presume at school in day) will have her nose put out of jOint however you feed.
the feeding will get easIer. 3 months in my second was feeding in five minutes, down from 40 minutes.
sleep got easier, from waking every 2 hours to every 4-5.
i use slings inside and out (to he extent of never buying a pram or stroller for either) and she feeds, naps, feeds to sleep either at home, or walking to preschool or out in town. this means i can do housework and cook (i know you're not supposed to!) and dress, play with, read to etc, etc.
i rate stretchy wraps but they outlive their usefulness 4-6 months in. so would recommend an ergo as you can get an infant insert an use from the start. i find it easier to feed in an ergo as the straps ean you can adjust up and down to get the latch, then tighten. sleep hoodnoffers support for hands free feeding. if they are asleep you can delatch and hoik up and tighten. any old met tai would also do. i find with wraps you need to retie if baby sleeps and then they wake up.
co-sleeping (i end up with both in) will help as you can feed half awake lying on your side
i also express on one side feeding baby on the other to stimulate let down. but i don't often it as it's easier to just feed.
i'm not saying i find it easy at all. i have an aching back after carrying a 6 month old (following from 2+ years carrying my first). sleep isn't anywhere near sleeping thru. but it 's livable with. i have help from husband, who also carries them and works part time when mat leave ends to look after them.
but this means i can get through each day intact.
and my first daughter took to the change very well, even self weaning as she said "boob is for my baby now..."
good luck. it got dramatically easier 3 months in.