Don't feel like your a crap mum darl. We all go through it. First week or so is usually really stressful in a mummy's life, even if you've done it before! And it's even harder when you have sore nipples and boob infections! I know what it's like to want to give up on the breast feeding. I know it doesn't feel like it but it will get better I promise! I remember my first week of breast feeding all I did was cry. DD was a total snack feeder so she was feeding every 20 minutes all day and all night and I was exhausted and soooo sore, but it did get easier. It probably really just doesn't feel like it right now. Just be kind to yourself. your not a bad mummy, a bad mummy wouldn't be in here talking about how guilty she felt kwim? Try going to the chemist, or even talk to your doctor to see if there are any creams you can put on your nipples to stop them from being so sore. I know you can use Bepanthen on them.