Have you tried swaddling her? Sometimes when my little one is just screaming and I’ve done everything I think possible I shut the lights off (mainly for my sanity), put on some white noise & swaddle him whilst gently swaying him and he seems to settle.
Look up ‘silent reflux’ and see if she has that and contact your GP x
Our 5 week ago seemed to be crying whenever he was awake. I tried everything and then took him to an osteopath who said he had loads of tension in his body due to the way he was delivered. He’s had two treatments now and we’ve seen a huge difference. He’s actually content when he’s awake and the crying has massively reduced. Xx
A bath can often help too.
Have you tried giving her stuff for reflux/ or colic? Pacing her feed and burping in between. Then keeping her upright for around 30 min after feeding? I would try gaviscon infant or ask doctor for omezrepole. If you are breastfeeding I would also cut out caffeine and dairy as she may have an allergy and caffeine is a stimulant.