Feel very disheartened and do not know how on earth I amever going to able to progress to longer and less naps in the day. Sorry, know I sound dramatic, just having a bad day!!!
Oh dear, you sound super stressed. Dropping off some hugs to start with.
If your main aim right now is just to get him to sleep, and avoid OT, then I will suggest something I used to do: combine two types of nap. So, say he goes into his cot and does 30/40 minutes, when he wakes up, pop him in buggy or sling and tack on another nap, if he will go back to sleep. That way you can up the amount of sleep he's getting. I used to sit with LO (by the cot!) and just put hands on for any stirring, no patting, just gentle pressure, and maybe a very quiet shush for one nap. And then have a bit of a break by doing the 'combined' method.
Right now, you sound pretty wound up about it, so I would just try to ease back and relax a bit, which is easy to say, but hard to do, I know. There is no point in you being miserable and not enjoying your baby. This time will be gone so soon! Hopefully this suggestion will help for now, and we can keep thinking about his routine more broadly.
Meanwhile, can you recap a bit? What are his feeding times like? I am noticing that, in your first post, he appeared to go almost four hours between feeds (4.15 to 8 am). Is that usual for him? Perhaps a look at the EASY board might help you find some inspiration as there seems to be something going on with feeds and naps, right? This link might help a little:
When EASY seems hardI'm also wondering if your baba might be spirited, in which case you need to adapt the sh-pat and so on. Have you seen the quiz?
The BW "Know Your Baby Quiz"Hope some of that helps!