Hi missldi how was your night?
Can you try the sling when she's in a better mood - so once woken, fed and burped, pop her in the sling for a bit to get her used to it. Then go for a walk.
Also it might be reflux - so try switching formula to easy digest and feed little and often instead of big feeds which are spread out. Also speak to your GP.
Have you got a dummy? Some babies take a bit of persuading (mine did - but as he had reflux I kept trying) - don't force it, just try when they're not crying. I was anti - dummy but it helped and DS (now 10 months) doesn't use it now.
The combination of dummy and sling might help.
Plus white noise - try and put your DD to bed early, say around half 6 before the crying starts. Don't bother with a long bedtime routine, just keep everything calm the last hour before bedtime (low lights, calming music, no stimulation, keep in the sling or hold) then change, feed and rock to sleep with white noise in a dark room. Perhaps have an ipod with headphones on to help you stay sane.
Also try and get some high energy snacks and meals in - get an online supermarket delivery. I used to eat a lot of nuts, porridge (2 mins in microwave), ready meals (microwave rice with microwave fresh soups), jacket potatoes in the microwave with microwave beans. There's a theme here!! I'd have a cooked meal in the evenings. Also ovaltine is great as well - lots of vitamins and you can make it in the microwave!