so you r a school teacher too? I used to be a school teacher
Try nursing baby on one side and expressing on the other breast at the same time. I find it helps to bring on let down.
By the way, its only 5 days since you gave birth, milk may not have fully come in yet. Drink lotsa fluids and latch baby more often so as to stimulate the breast. Massage before you express.
Most importantly, you gotta relax, my milk flow was low at first, i started expressing when baby 8day old, managed to get around 60ml from one side while nursing him on the other. dont worry, milk will surely come in.Jiayo!!