Hi there!! Sorry to hear you keep having nap problems!!
Hang in there!! I know how frustrating it can be, but we will get to the bottom of things!!
I checked your latests posts and your routine, and I think your lo may be having UT naps. The first one is 1 hr 15 min long, which I wouldn't consider a short nap, though we may try to lengthen it by having more A time. You are treating that first nap as a short nap and having very short A time after it, so then you get an even shorter nap. This is what I would do: (I'm taking this info from your latest posts)
Wake up 6:30 a.m.
A. 6:30 a.m. - 9:45 a.m. (3 hr 15 min A time)This includes ALL the time he is awake until the moment he closes his eyes again)
S. 9:45 a.m. - 11:15 a.m. (Hopefully this will be 2 hr nap, but if it isn't, it is ok)
A. 11:15 a.m - 2:30 p.m. (3 hrs 15 min A time)
S. 2:30 p.m - 4:00 p.m. (Hopefully it will be 2 hrs, but if it is 1.5 it is perfect)
Then, I would have a 7 p.m bedtime. Does this make sense?
I think your lo is a bit UT for the first nap. He may be ready for more A time. Then, he gets very short A time before the second nap, so you end up with another UT nap. So let's try increasing those A times and see if that helps.
You said that your lo wakes up crying from the nap, but he is pretty happy during his A times. Again, this makes me think UT.
Personally, I consider naps to be short when they last less than 1 hr. So I wouldn't treat the first nap as a short one and have a short A time after it. This may be the reason for your lo's screaming when you try to put him back to sleep. He may have had enough sleep.
When you feel you can't deal with this anymore, go for a walk and stop thinking about sleep training for a couple of days. That's what I do when I get so stressed because my lo won't nap as I want him to. I go for a walk and take my lo with me and try to forget about sleep training. I do APOP for a couple of days, and then, I'm back again with a fresh mind and heart!!
Hang in there, as Trisha said, you are not alone!! We'll get this sorted out!! Hugs,
Alexa