Disclaimer - far from expert as a FTM of a 10 week old
I have let baby make her own routine and have mostly been doing feed-play-feed-sleep, we're EBF and from 8 weeks she has started sleeping better at night - we get a good snooze from about midnight to 10am with about an hour wake up around 5 for a feed and sometimes nappy change. In the day her naps are 1.5-2.5 hrs, with a wake up time of 1-2 hrs. Some days she fights napping and will be up and fussy for 4 hrs or so.
I have found if she doesn't settle after a feed and a cuddle, a paci can help then. But not always.