Girls, hi! We've been breastfeeding for 7 days already))) I feed him from…

Girls, hi! We've been breastfeeding for 7 days already))) I feed him from my breast and every time he takes it and doesn't latch on properly - that's AD. The pain is terrible, I tried expressing once - the nipples got so swollen that they barely fit in his mouth. I'm trying to attach it right, I put Bepanthen on it, but it still doesn't help. What did you do to get through this? Please give me some advice.