Baby takes an hour to feed/put down

Idk what to do anymore I’m exhausted. It takes so long to feed and put down the baby for nap/sleep everytime. Literally. I can’t get anything done and I’m getting so frustrated. During the day I can usually get an hour in between feeds if she doesn’t go down for a nap. Which hasn’t been happening lately either. When she does nap it’s no more than an hour, sometimes waaay less.

I try putting her down multiple times as she’ll unlatch and be sleeping in my arms, but as soon as I do she wakes up and I can’t do anything else but nurse her. It’s been getting to the point of it being us starting a bedtime at 8pm and ending up her actually going down at 9:30/10pm. Sometimes she’ll sleep until 5/6am but lately she randomly will wake up at 2am some nights and like tonight it’s already been an hour a half of me putting her down.

Does anyone have any similar experiences or what should I do? I thought they were supposed to be eating better at this age but it’s getting worse everyday.

We were supplementing with formula but we just switched to a different one now to see if she likes it. It’s just super frustrating and I need my fiancé to start feeding her so I can get breaks but atm this isn’t happening because she only wants to be nursed!