aw i really feel your pain! my bub is 6 days old and we had soo much trouble getting bub to latch on..my nipples are soo sensitive and became extremely cracked and even bled the first few days we were breastfeeding.
getting her to latch properly was the problem, and no midwife or nurse could teach me to get her to do it properly, i had to figure out a way of doing it on my own and it became successful!
positioning is key in getting it right, i use the football hold and it works wonders.. (if u want to no more u can post me if u like)
with the nipples, i found NO cream worked for the damaged nipple, if anything it made it worse. if u can express a little colostrum on the cracked area and let it air dry..try to wear no bra or top as much as possible, and if the nipples get stuck to clothing wear breast pads.
at the hosp they gave me these 'dressings' for my nipples, and they are devine, just ask at ur local chemist they wouldnt be dear they're just like tiny bandages but give u relief.
when breastfeeding try a nipple shield untill u work out how to latch, the bigger the shield the better i found, and it helped my bub open her mouth wider.
people said this to me and it meant nothing, but still, persistance is a virtue! u will get it eventually and it may not come easy and pain free, but it will come grin and if u give up, thats ok too, watever works for u is the best way!
all the best, if u want to ask any more questions please feel free !!