Nursing/rocking to sleep no longer working! Help 😩

Ja

Anyone else still nurse or rock their baby to sleep every night? It’s the only way I can get my boy to sleep BUT the last week or so, especially the last few nights, he’s waking up every time I put him down and he’s screaming at the top of his lungs, doesn’t let down until I pick him up. He’s vomiting, jumping in his crib, just not staying laying down. Don’t know what to do anymore. We had tried sleep training a while back and he just wasn’t having it, but I’m thinking it may be time to try again since he’s waking when I put him down anyway. how do I get past this if he’s screaming to the point of making himself sick?! Advice please 😩 I’m exhausted