6 month old not sleeping thru night

Daughter turned 6 months today and she still is not sleeping thru the night or really sleeping at all! I feel like since her 4 month old sleep regression she has never progressed 😭 she constantly wakes up to nurse  (she won't take her pacifier anymore at night ) my supply has decreased tremendously , she drinks 110ml every 2 hrs and I went from pumping 4-5oz each session to 80ml to 3oz combined 😏 I've tried mother milk tea that gives her gas.. and I still drink plenty of water and eat oatmeal any suggestions ? I've still got 6 more months of breastmilk  to go