Ok, so as promised my routine right now:
WU 7am-ish
E 7am
A ~1h15-1h30 depending on when he wakes up and how long it takes to settle him
--> (optional E) 8am if he has eaten almost nothing at 7 probably full after 5am NF
S between 8:15&10 am (45min-1h) - always wakes up with a cry, I try to resettle - this week, totally not successful:(
E 10:00am - no matter if he ate at 7:00, 7:30 or additional portion at 8:00
A up to 11:10am - it's quite long as his first nap is almost always finished before 10am; yesterday he managed up to 11:30 without fussing
S 11:15am - 1:00pm - this week he has constant waking during that nap - every 10min or in 45min mark, however here I always manage to resettle
E 1pm - almost always have to wake him & he is very sleepy, no matter how long he slept & if he was waking up or not during that nap
A up to 2:00-2:15pm - he is getting fussy even before 2pm, so I put him in the stroller and he calms down there even when not sleeping
S 2:15 - 4:00pm - sometimes he is waking during that nap, but generally stroller is making a good nap
E 4pm
A up 5:15pm (low stimuli activity, mainly in his room - two days ago success, yesterday failure but will be trying:D)
S 5:15-6:15pm (nap may be shorter or longer, depending on how he settled, I wake him latest 6:15pm as waking him just before BT makes going into bed impossible)
A 6:15pm - 6:40 low stimuli activity as he woke up from a nap or I woke him
E 18:40 - 18:50 (1. feed - cluster)
A bath 15min
E 19:05-19:20 (2. feed - cluster)
BT 19:20, sleeping after 10min maximum
NF: between 4/5am - sometimes even after 5:00, always takes full feed
from 5:30 till 7:00 usually some NW, but easily resettled
Comments:
- if he wakes before 7 I resettle, if after 7 I allow him to sleep until 7:20, often wakes up without crying
- his naps this week went nuts; I am able to settle him nicely thanks to white noise, but than he just wakes up....

we still managed to have some good naps this week but they were an exception this week
I am planning to change the routine in the evening for:
E 6:00pm
A up to 7:10pm
E 7:10pm
S: 7:15-7:30pm
I also think on what to do in the morning as I start to believe that I will never even manage to be successful with his nap in the morning.