5 month old still having sleep regression?

Miranda • Wife to my high school sweetheart 💍, mama to two beautiful girls🎀🎀, an angel baby 👼, and one sweet baby boy on the way 👶🏼🍼💙

So from 2.5 months to 4 months my daughter would sleep from 9 pm until 3 or 4 am, nurse and go back to sleep until we woke her when we would have to leave for work. We started solids, earlier with her than with my first because she seemed super interested and would sit in a chair totally fine, she was 4.5 months old, the first week she slept through the entire night 9 pm until 6:30 am. Then she completely changed, she’s now up every 2-3 hours again wanting to comfort nurse. We’ve done pacis, earlier and later bedtimes, baths before bed, lotions that are calming, white noise, swaddles and even the chiro when she went a few days without pooping (they did magic for that) but I still end up in our recliner holding her while she sleeps/nurse multiple times a night. She is still in our room in a bassinet as I don’t need her waking her big sister in her room( they will be sharing a room) but she is across the room probably 15-25 feet away from me. I’m not sure if this is a prolonged sleep regression or what but any insight would be appreciated!