I need help producing milk!

I am currently breastfeeding my 2 week old but I am using formula with almost every feeding to help fill her. I would love to not have to supplement milk.

My routine is that she goes onto each boob for about 30min each then I follow up with 3oz of formula because she is still hungry.

Other than massaging my breast and staying hydrated, anything else I can do to produce more milk?

I did just start pumping and can only get 1/2 of an oz out of each breast.