I had a very 'difficult' baby (colic/reflux, constant crying pretty much) and abandoned all the books (never fancied GF but probably would have given it a go in desperation...).
In the end speaking to a friend who said she knew a baby like mine who was only happy in the sling helped me no end - I just had her in the sling all the time except when she was feeding, then quite quickly she put herself into an eat/activity/sleep routine and was much happier after feeds so didn't cry until she was tired, at which point I would put her in the sling. Only probs are it's hard to sleep yourself or load/unload dishwasher/washing machine or (crucially) get food out of fridge with a baby on your front! DD slept through from 4 months from about 9-6/7 - she was bf and struggled with putting on weight, so took until she was weaned to go 12 hours without a feed) prior to that had phases of being OK and phases of being up for hours screaming after feeds due to digestive discomfort.
I think the main thing for me was that I hadn't anticipated how little time I would have. If someone had told me before I had her that fairly often I wouldn't have time to have a shower/clean my teeth I would have wondered what it was about looking after her that was going to take so much time. I realised I had to flip that conceptually and realise that for me to be doing something else the baby would have to be sleeping, and this was something she didn't do until we'd established the sling routine.
I would say that sleeping when the baby sleeps is harder than you think. Last time I found it hard because a) I was anal about having a tidy flat (o! how times have changed - you should see how I left our kitchen today ) and b) (which I only rationalised recently) you kind of want some time where you can be you again - much as you worship your new little person it's a big change going from an independent entity to someone who is entirely defined by their relationship with their new baby.
There's also c) when they have gone to bed at night you are torn between sleeeeeeeeeeeeeep beautiful sleeeeeeeeeep and actually spending some time being just you and DH again - the other thing I wasn't ready for was someone else being in our relationship. Sounds weird and it didn't impact my feelings for her at all, but it was SO much odder than I thought it would be having someone else in the flat.
Does that make sense to anyone?
So glad you guys couldn't cope with the snoring either! We managed about a month with DD (known as Truffle Pig at that point) in our room. Moving her (from moses basket on floor, never co-slept) didn't stop me being OBSESSED with the idea that she was somewhere in our bed and I was either going to lose her or squash her - literally every night until she was about 1 I would at some point find myself gently/frantically patting over/searching under the duvet for her. Mental.