Was working for 2 weeks n all fell apart,
Things change so fast when they're that young that this often happens. You just get the hang of it and it changes!
The excessive drooling is really common at that age. I was told that it's part of the teething process but doesn't necessarily mean any teeth are coming soon but if you suspect his gums are sore you could try some meds to see if it helps.
You're day looks really great. I think that he might be getting OT from the long A time between the catnap and BT. It might be worth trying to start BT quite a bit earlier - maybe 7:30, so that he's asleep by 8. Right now, his nights are pretty short (10 hours) so he's probably waking up tired so that might be why he can only do about an hour of A time. Once you get BT worked out, he may be able to stay awake longer before each nap.
Is he giving you any tired signs between the catnap and BT? Ear pulling? Hair pulling or head scratching? Yawning? Eye rubbing? How is he behaving when you try to put him to sleep?
Does he keep the paci in his mouth the whole time while sleeping or does he spit it out once he's asleep?