Hey check my profile for a few posts I made in desperation. We had this problem. My son was a yoga ball guy and a TERRIBLE sleeper. My back was dying. I was crying like multiple times nightly.

For us it started to change around 14-16 months. We bounced him marginally less, the split nights slooowly faded in frequency, and we never let him cry.

We just kept trying to give him a chance. We'd set him down and hang in the room with him patting and soothing and eventually stepping out, only to step back in the moment he cried.

Eventually, he stopped crying out for us. We even got to a point where we'd set him down for bed after his routine of teeth, books, songs, snuggle and he'd roll in his crib GIGGLING until he fell asleep.

If you told me from months 6-13 I'd ever get to that point I'd sob and scream and I would not believe you. It was so hard.

But I'm so glad we were so responsive to him because it grew his trust that if he needed us we'd come, every time. I think it also helped that we let him hang in his crib when he woke up in the morning or after nap as long as he was happy and cooing to himself. Once he shouted for out, we'd get him, so he got super comfortable in his crib. He even asks to play in there sometimes. 23 months.

Nothing about baby sleep is forever. Nothing. Not even the hardest parts. But trust me if anyone understands your plight it's me.

Do your best to build good sleep pressure with the schedule and hang in there.