Cabbage for engorgement, not cracks.
Oooh sorry about your nipples. I had this with child number 4 (after trouble-free feeding with 1,2&3). In my case it was caused by thrush. If that's your problem, get it sorted quickly.
Otherwise it may well be a problem with latching. Have you anyone who can help? BF counsellor? Good mw?
Ignore me if you already know this but .... try lining up the baby's nose with your nipple before she goes on. Nose to nipple, wait for wide mouth, then bring her on. That makes sure she has most of the areola inside and that your nipple is on her soft palate and not being gnawed.
It's worth really spending time on positioning now while she's learning.
You could try feeding her underarm (using lots of cushions so your arms/back don't get tired holding her up). That means she'll be rubbing on a different bit of the nipple.
Sometimes it takes a bit of adjustment and the baby's mouth needs to grow!
I can recommend Lansinoh cream which is the only one recommended by the excellent Breastfeeding Network. It's lovely, gentle moist wound cream and you don't need to wash it off before feeds.
Also I took painkillers just to get through it. Otherwise I think I may not have been able to keep on BFing. I'm so glad now that I stuck with it.
If it's any consolation I'm typing this with my huge bruiser of a 6 month old on my knee sucking away happily.
I really feel for you and I know what it's like. The Breast Feeding Network website is really brilliant. They and/or la leche league would be able to put you in touch with a counsellor if you need one.
Sorry this post is long. I hope some of it is helpful. All the best. x