Newborn jaundice

My lo is 6 days old and still has jaundice, we’ve been going to the doctors everyday to get her checked and her levels just haven’t really changed. She’s at 11.5 and it went down to 10.7 but they still want me to come in and get her checked. I’m freaking out because I want her to her better I’ve been doing what the nurses tell me. Have her in front of a window to get sun and I’m feeding her breast milk and formula but I don’t know what else to do. I want it to go away but not sure what’s happening plus the nurses aren’t much help. They don’t really say anything