Has anybody breastfed successfully with large breasts and flat nipples?

Kate • Due September 23 with a baby girl 🌸

I have a 5 day old at home and am having trouble breastfeeding. I was able to have her latch at the hospital with the help of a nurse but cannot do it at home and it turns in to a screaming frenzy from my daughter and I feel like such an inadequate mother 😞

Please tell me this is possible? Does anybody have tips on positions or any advice? I am so determined to breastfeed my daughter and can’t help but feel she pushes me away now whenever I try.