Hi there, and welcome!
In regards to starting EASY with your LO you can still do this even though he is sleeping on the couch etc. I don't personally have advice on the sleeping issue.Hopefully someone will jump in on that point...BUT...with regards to EASY start small. Start the day at approx the same time, then feed within 10 minutes of waking..acitivity..then back to sleep etc... What is the current schedule like right now? perhaps if you post it, we may see that you aren't that far off --wouldn't that be nice?
PU/PD board should be able to help if you have any questions in that regard..I myself used/still use Pat/shh and it works most of the time.
Just persevere, and have faith that allthat you are doing now will payt off.