Baby not sleeping at all

For the past few nights now, my daughter literally won’t sleep at night. She’s never been a good sleeper anyway but I can usually get a decent stretch and then off and on for the rest of the night.

Lately she literally constantly wakes up. Maybe every 30 min? I know there’s the 4 mo sleep regression but is it really THIS bad?? I imagined it being kinda how she was already sleeping.. but this is just crazy. I just nurse her all night long.