Transitioning an infant can be challenging. I have had 15-18 mo start without any issues and then recently transitioned a 12 month old.
After day 1 of the 12 mo old I though I might have to terminate and possibly take up drinking
But after a few days it got better and the child transitioned within a week and a half.
It is a REALLY FINE line to walk between comforting and cuddling a scared/confused child and also not getting too close to the point where they velcro themselves to you. There has to be a balance between comforting and making them learn to play on their own for periods of time and fostering independence.
I hope it gets better for everyone who is going through the tough transitions. Kudos to everyone who transitions an infant. I know that minutes with a crying new child can feel like hours