Just remember supply and demand. You need to pump every time she gets a bottle, and if you are trying to build up a supply, you need to pump extra. Look up power pumping and see if that might work for you. Also, hydrate, hydrate, and hydrate.
What lactation drink you use?
@Flower a cocktail of cranberry juice and coconut milk. Sounds weird but I found it works really well plus it's super cheap to make
So I filled up the whole of the bottom drawer of the freezer just by pumping for 20mins in the evening about 2-3 hours after putting my lo to bed