i just wanted to say :hug and to hang in there!
also, i had cracks, splits, and bleeding in the beginning also and i used lanolin on my nipples...it was a godsend...it healed everything up really quickly and actually made it feel a little better. if you can, try to get some and put it on after every nursing session until your nipples heal up; it will really help. it's a $10 investment that will save you a lot of heartache. be careful tho, because it will stain your clothes (the oil in it), so use nursing pads in your bra.
hang in there mama-- it will get easier!