Establishing breastfeeding DD who is 4 days old. My milk has come in really quickly it feels. DD is latching and feeding nicely on right hand side. But left hand side is engorged and she is struggling to latch for very long. I think because boob is hard and her mouth is small. I've tried hand expressing a bit before feeding just now. It worked a little but she was on and off and just fussed mainly. Any tips, do I need to express more to soften it up enough for her?