Flat nipple breastfeed

Jherrica

I gave birth to my Ds Saturday and breastfeed has been so painful. My kiddo latches on the top of nipple not bottom or surrounding. Any tips of changing that. I’m heavy chested and it’s harder to get all nipple and surrounding in his mouth. I’ve looked up videos, no help. He’s gas 3 formula bottles and I’m getting discouraged. I pumped for a year with my first who didn’t latch