Why won’t she sleep???!!! 😩😩😩

I have a three week old who all of a sudden isn’t sleeping at night. She’ll wake up every hour to 2 hours. Sometimes wakes up as soon as I lay her in her bassinet. 🤦🏻‍♀️

If she woke up and stayed calm I wouldn’t mind but she just cry’s and screams her head off. I’ll change her, burp her, feed her, rock her, and almost nothing works. If it does it’s only for an hour or two. 😩

I’m a FTM and I was wondering if anyone could recommend things to try? She seems to sleep fine when she’s held. 😒 The result of being the first grandchild on both mine and my husband’s sides. Every one wants to hold her all the time.

She sleeps just fine during the day.