I can really feel for what you are going through. It was one of the toughest things I ever had to do. I know it's very hard to walk away from your crying child. I've been there, done that, and squished the habit the second time before it got out of hand.
What I did for a while with DS8 was put the baby down, set the timer on the microwave for a couple of minutes and walk as far away as possible. I'd try having music on for me to try to cover up the cry from the baby. It never did make me not hear him, but it certainly masked the sound a bit. This is more for you than for the baby. I also had it suggested to me to play classical music for the baby to sooth him to sleep.
It's going to be a tough couple of nights (and nap times if your home with him) but quickly you'll see that he doesn't cry as long or as hard as he did the night before. Good luck.
What I did for a while with DS8 was put the baby down, set the timer on the microwave for a couple of minutes and walk as far away as possible. I'd try having music on for me to try to cover up the cry from the baby. It never did make me not hear him, but it certainly masked the sound a bit. This is more for you than for the baby. I also had it suggested to me to play classical music for the baby to sooth him to sleep.
It's going to be a tough couple of nights (and nap times if your home with him) but quickly you'll see that he doesn't cry as long or as hard as he did the night before. Good luck.