I’m so frustrated with these flat nipples. I have formula my doctors office gave me but the baby doesn’t like it. She’s just 5 days old. She gets so frustrated. Any tips! ? I already ordered the Lansinoh Latch Assist but it will get here tomorrow. I tried using the pump to help stick out my nipples but didn’t work so much. I’m going to try and have someone pick up some shells for me but besides that!? Any other tips?