Hazel,
If you don't enough fluid, it is difficult to boost supply. Me drink warm water, but I took plentiful of soup, red date tea as well. I keep asking the confinement lady to cook more.
First month it is crucial to concentrate to establish supply. Latch bb on if possible. But you also must rest well too as after birth we need to recuperate.
For me, confinement lady helps me to jaga bb at night as there at least 2 night feeds. Baby has not dev feeding pattern. So can be tiring.
I rest well in the first month and also focus on est milk supply. Second month onwards, I more or less know baby pattern, I took over the jaga-ing of the baby. As for the expressing milk, I also est a pattern on expressing the milk after 6 weeks , preparing myself back to work. Cos I return to work after 8 weeks and KIV my last month m leave slowly use. But must use up by baby 6th mth.
Once your supply and pattern for expressing are established, you no need to worry of your supply liao. It can be quite stabilised but must be disciplined to latch/pump to release milk out. Never let the b engorged too long, it can lead to b infection which the mother can run a high temp.