Given that you should be expecting around 16-20 hours sleep in 24 hours up to 6 weeks, not sleeping through the day is a big, big problem.
For the time being don't worry about anything else but getting your baby to sleep and feed. All the time.
My emergency solve all would involve a dummy, bouncy chair and sofa. a 60 or 90 minute routine should work for this age if you like structure, otherwise forget about the timing and just concentrate on the order:
(1) Full feed - at least two sides
(2) Dummy in, into bouncy chair (minus any play arch)
(3) Sit on the sofa and with your foot on the chair bounce, bounce, bounce, bounce that baby into sleep submission. Re-insert dummy as needed.
(4) Once 60 minutes has passed since you started feeding, stop bouncing and wait for baby to naturally wake up.
Then start again and repeat, repeat, repeat through the day.
After a few weeks you might want to stretch this to a 90 minute routine and introduce some awake time between the feed and dummy/bouncy chair.
Fact is you baby is getting way, way, way too little sleep and you need to focus on getting him to sleep pretty much all of the time until you've cracked it. Don't worry about associations or anything else - get that baby sleeping well and feeding well, these are all that is important for now.