How Can I Increase Breast Milk Supply?

I tried alot of different method.. one that really works and I hardly give my baby formula already unless wan to add probiotic or at night so he is more full to sleep longer. 8am drink 200ml water 11am drink 300ml 1pm drink 200ml 3pm drink 200ml 5pm drink 300ml Before sleep drink 200ml I follow this and in between I still drink water or Milo or even milk tea.