We’ve got a 8 week old “velcro baby”, we’ve given in, mothered him, nurtured him and he’s becoming more and more independent by the week, at his own pace. I can understand older babies who are capable of understanding the feedback loop but it’s a newborn ffs, not a dog!
It will get easier – despite giving ours “too much” attention, he slept for 8 hours with a single feed in the middle last night. He probably won’t do it again tonight, he might do it again in a week but he’s getting there and we’ll continue to nurture, not train him.
OP: try getting her to fall asleep on one of you, I mean proper out for the count. Then swaddle, pick her back up, make sure she’s out for the count still and only then try putting her down. Keep your palm on her chest for a minute or two to maintain that contact, and then slowly come away. And just keep at it.
Also, try infacol as already mentioned, helped our windy little monster.