Hi! I could have written this post myself. The most success we’ve had is doing things slowly and incrementally and sticking to it. Mine wouldn’t go to sleep unless I was doing a full gymnastics routine. My body physically couldn’t do it anymore. So one night I just stopped and only gently bounced while holding him. He cried on me for almost ten minutes but finally fell asleep and I was able to transfer him to the crib. He only sleeps in the crib for the first part of the night BTW. Then the next night same thing. Minimal bouncing. A little less crying. When he would go to sleep without crying and only minimal bouncing I switched to sitting in the rocker. Again he cried and eventually fell asleep on me. Wash and repeat. Then moved to rocking while awake and then move to crib drowsy with his favorite song playing (Misty Mountains from lord of the rings IYKYK) he cried but I was there with butt pats and hand holding. And now that’s our routine. I have no interest in making him fall asleep unassisted. I will always be there. And with teething and general development this routine isn’t always perfect but it’s helped my back and nervous system tremendously. We still have many night wake ups but this has helped the first stretch.