Use a sling! It will help a lot. I'm sure she's picking up on your anxiety too. I know it's hard (I've been there!) but you need to try your best to relax and wondering how long it will be before she goes to sleep or when you can eat are no doubt stressing you. She would be picking up on this. Pop her in a sling and let her have her first sleep for the night in the sling. Eat, relax and watch tv. She'll chill cause your chilled You can then try to put her in her bed once she's as keep or wake her for a feed later (if she normally feeds then) and try putting her down after a no-fuss, quiet feed.

It will get better hon. Hang in there!