My son won’t latch on

First time mom, My son was born this morning at 5:45 am. I wanted to breastfeed but unfortunately he won’t latch on and he falls asleep at the breast. So the nurse at the hospital told me that I will have to combo feed by pumping. What is a good schedule for just pumping? In the meantime I am going to keep trying to latch him on.

What is some tips to  establish my milk supply?

What foods should I eat what should I drink besides water?

How much water should a breast-feeding mom drink in a day? 

Tips on pumping