My LO, now 10 months was sooooo clingy and needed to feed all the time, and I mean all the time so I feel your pain!
I'd second buying a sling - a lovely soft one like a moby (don't worry they're easy to tie after the first attempt) is great to begin with or if you have a decent sized baby just go straight for an ergo or beco (my 10.5kg 10 month old still loves his beco carrier and it's so comfy for me).
With the feeding, have you tried all the waking trick to get the feed to last longer? Strip clothes off so not warm and comfy (baby not you!), tickle feet, burp then relatch etc. If she gets a longer feed she may sleep longer. Didn't help with mine and I learnt to feed him lying down for night feeds and in the sling for daytime mobility.
As to routine, please don't worry, it will come and usually best at your LO's pace. I know people who swear by gina ford but I know it wouldn't have worked for me. One thing that really helped was teaching night from day - from 3 weeks old I took him upstairs at 7-8pm and fed him/got him off to sleep in as dim a light as possible and no talking/eye contact. From 6 weeks he was going to sleep at 6pm and wouldn't wake til 10, then every 1-3 hours overnight, but it gave us our evenings back a lot earlier than friends managed and I was grateful for that.
I think you just have to accept that the next couple of months are going to be just as fraught and difficult, but you have all the wonderful smiles, giggles, chatter, sitting, wriggling, crawling and naughtiness to come.
I cuddled my DS whenever he wanted, carried him all the time, fed him all the time, didn't leave him to cry and tried to listen to what he needed. I was so worried I'd end up causing him problems with all the rod for your own back comments. But do you know, I have an outrageously outgoing and adventurous cruising 10 month old who chatters and laughs and is happy and has been sleeping 6pm-6am for 2 months. I'm so glad I went with what he was telling me and ignored the books.
Try as much as you can to enjoy this special time and do get out, even if it's just a 5 minute walk down the street, if nothing else it helps them sleep better!
You're doing a great job. Just go with your instincts, noone knows your child like you do.