No sleep & newborn stage advice please

This post is probably going to be all over the place because I don’t even know where to start. First of all how are you other mommas surviving the night? I need all of the advice. Little one turned 2 weeks on Friday. We don’t co sleep, she’s breast fed with occasional bottle of pumped breast milk. She will not sleep on her back, at all. The night she’s was born she was rolling from side to side in the hospital bassinet by herself. The nurses basically said there’s nothing that we can do about it since she does it by herself. We slept maybe two hours in the hospital our entire stay because she just would not sleep unless we were holding her. So fast forward to coming home from hospital.. she still won’t sleep. We do white noise, keep things dark at night. We tried the bassinet next to our bed with both me and husband in our room, taking turns with her sleeping in the bassinet in the living room with one of us sleeping on the the couch next to her neither of those worked. So then we went to “shifts” because both of us were beyond exhausted. Husband would sleep from 10-2 while I have her in the living room and I’d sleep from 2-6 while he had her in the living room & she was still up most of the night. We did the shifts for about a week. Then Wednesday night we decided to try to have her sleep in the bassinet in our room with both of us in the bed. We both missed sleeping next to each other and know shifts aren’t going to work long term especially since he’s about to go back to work. She did really well. Slept from 11-1 and then 1:30-4:30. Which I was super happy about but she’s a loud sleeper and makes a ton of noise so I didn’t sleep well those 3 hour stretches but I saw light at the end of the tunnel. So we tried again Thursday night and she was NOT having it. It ended up being 1am and we decided we had to do shifts because she was just losing it and wouldn’t settle. We did shifts again Friday night & I ended up putting her in the crib to see if she’d do better in that and slept on the floor next to her. She slept from 11ish-12:30 I think and then for another 30 minutes in there until she was wasn’t having it. So then last night husband and I made a pallet on the floor in her nursery and we’re going to do shifts but with sleeping in the same room. She did okay and slept from about 11:30-1:45 but she was fussy most of the time and in and out of sleep. I had to reach up and put my hand on her back or chest for her to even sleep. Then for my husband she wouldn’t sleep at all and this girl ROLLED ON HER STOMACH! she was swaddled because we thought it would be okay since she could only roll to the side and we’re right there and we feel like it helps her a ton because her startle reflex is bad but now that’s out for us. She’ll take 30 mins- an hour nap in the bassinet sometimes but that’s about it. I’m trying so hard to expose her to it as much as possible but it just doesn’t seem like it’s getting better. Help. What do we do for sleeping arrangements? My husband is going back to work soon and I just don’t see how we’re going to be able to sleep in the same room and he’s going to be well rested enough. What do I do? How are you guys doing this? Newborn stage is hard please tell me it gets easier.