Struggling with newborn

I had three miscarriages to get my baby girl and now, at times, I feel like I regret having her.

It’s been 3 weeks, she doesn’t sleep at all, she screams all night from 10pm - 8am.

She screams constantly no matter how recently she’s been fed, changed, burped, cuddled. When I try to feed her, she screams at my nipple and hits the nipple shields off 69729 times waving her hands around and arches her back away.

I love her so much but, this is the most difficult thing I’ve ever done.