18 month sleep regression.... it’s hard

Is anyone else battling the 18 month sleep regression? My little one will wake up inconsolable, he has never been like this. We have lost all sight of sleep training and mostly just trying to survive. He goes to sleep ok but then wakes up several times throughout the night. Some times he will put himself to sleep other times I can simply lay him back down and he will only fuss for a little bit but there are night that it seems like there is nothing I can do to stop him from crying to the point he will make himself sick. I’m hoping this regression gets better soon because I’m expecting our second in 3 short weeks and I’m not sure if I can do the sleep regression and new born at the same time.