Jazzie
There is no need to feel ashamed for doing the best you could for your baby. Sometimes, and often for no obvious reason, women do have difficulties with breastfeeding. However every birth is different. It would be unusual for the same problems to arise in your second baby as did in your first.
Accept all the help that is offered. Read books and watch videos, (you should be able to get these from your local hospital). And if your are not sure then don’t be afraid to ask.