WOW SardineQueen I found myself nodding in agreement with so many of your posts.
I was very pro-breastfeeding, before I started......I assumed like many that I had the equipment and my baby had a mouth, and so it was straightforward ....How wrong was I?
I found LLL, NHS local helplines, MW and HV all pretty unhelpful - they did try but I felt under incredible pressure to BF exclusively (I had twins, one who got the hang of it and one who just simply could not/ would not open mouth). Docs on ward tried to medicalise it as low blood sugar or tongue tie.
I was so desperate at 5 days that my DS had not had enough to eat/drink and had bone dry nappies for all that time, yet when I asked what to do I was told to persevere. I began to hate BF so much.
Lol! my last job at work prior to Mat Leave had been to ensure everything was in place for a BF support person for my local NHS.
I did feel cheated, BF was far from the rosy ideal painted in ANC, if I did not have such a a) strong grip on the benefits of BF b) shame at going back to work and saying I had failed I would have given up, but boy was I miserable and angry and resentful.
Worst of all when I was readmitted to hospital I was prevented from BF 24 hrs because I needed some sort of radioactive scan, could not get a breast pump in time to offload the amount I needed for 2 in 24hours, no one seemed able to advise me how much anyway, and when I asked for help about formula feeding so as to feed my little uns for that 24 hrs was told point blank by a MW that she could not tell me as it breached her ethical guidelines. 
Luckily the formula tins tell you what to do, so it was mad dash to supermarket and rapid purchase of bottles, sterilizers the works, and so my DS&DD were introduced to Formula and I felt upset and unsupported.
While flashing blue lights to hospital 5 days post birth and the disruption that brings could not be accounted for in ANC, I do think that if I had more realistic knowledge of the possible problems I would have been more prepared.
I look back to those first few months until DS proved the MW, BF support, and all the diagrams WRONG by latching on in his own unique way as a wash of sour milky smells, loads of day time TV,soreness and the sound of a child crying for a feed.
I kept on till they were 17 months. Mixed as they never got weaned off formula after the hospital saga, as much as I tried.
Would I do it again??? I would like to think yes but honestly unsure.
Finally best support I got was off Google, just looking for answers