Em you are doing a great job! It is really hard to get the hang of breastfeeding in the early weeks even without the unjust pressure of bad midwives and anxiety. You are not alone in feeling this this. I was exactly the same. Hang onto the memory of the good latch your clever little baby learned today. I'd give nipple shields a go too if it is flat nipples and / or if you are still experiencing pain. Lots of the girls here have used them for similar reasons with great success.