Hello, I have had my littlest 13 month old for the last month and a half. She does everything not to nap! She will be falling asleep right before naop time but when she knows its lights out and playpen time she will find energy to scream. at first when she started I would lay down with her, rock her, everything. She is quite difficult to put down after sleep and half the time wakes up when put in playpen. last month has been hard as I have a couple older ones just over the summer who don't nap. I have been putting the little one down in the same room as my other 2 year old. He can sleep through anything so it isn't concerning to me that he will wake up. She will literally SCREAM for about 20 mins and then fall asleep on her own, but it sounds like I am ripping her toenails off with pliers slowly kind of scream. If she hears me make a sound in the house or seems me walking past the room she will scream even louder. I know she wants me to hold her all throughout nap time but that simply can't work long term for me.
How would you deal with this? I have another little one starting september who mom says needs to be rocked to sleep and quiet in the house to fall asleep. I was hoping to have this little one comfortable and falling asleep on her own before I get a new little one who will need sleep training but she doesn't seem to be getting any better.

Any advice, suggestions would be greatly appreciated!