how to keep supply up pumping & breastfeeding

FTM here, 3 weeks postpartum. i decided pretty early on that for my mental health i could not handle pumping around the clock or breastfeeding around the clock. we have settled on breastfeeding throughout the night and i will pump during the day. right now im pumping 2-3 times a day. i’ll usually put 1-2oz of breastmilk in a bottle and supplement the rest with formula, it is working the best for us. the first 2 weeks i was producing anywhere from 5-7oz every time i pumped. yesterday and today im only getting about 2-3oz per pump.

anyone have any recommendations for keeping my supply up? i’m just having a really hard time pumping at various times throughout the day for a multitude of reasons. baby has also been cluster feeding and i thought that would help keep my supply up, but it doesn’t seem to be helping much.