Baby won’t sleep

Y’all. My baby (almost 4m) will go to bed around 8 and wake at midnight (sometimes 10) and then 2, 3, 4, 5, 6, 7, and get up at 8am. She eats 2-4oz the first couple wakes but then from 3am onward she’ll have maybe an ounce. She also fusses while half asleep every half hour after 3am so I rush to put a pacifier in her mouth so she doesn’t wake up my husband. We take shifts and mine starts at 2.. mine is the one she is up constantly for. For work we have to have shifts this way, so I’m not here for advice about switching shifts… I just don’t know what to do to keep her asleep!!! She is up essentially every half hour, either to fuss for a pacifier or get fed a few sips. She is also in her bassinet and we are about to transfer her to her crib in a few days and I’m dreading it so much because she already sleeps like shit. What can I do?!!

Thank you in advance!