congrats first of all for choosing to breast feed! :)I breast fed my first child for a year and 3 months, at first it wasn't easy because I felt like my daughter was always hungry too. when you're about to breastfeed your baby make sure that your baby is wide awake! that will help that way when the baby is trying to eat its not falling asleep right away. and also remember that babies just want to comfort of sucking, so even putting your finger in your baby's mouth could probably help or if you used a binky.
Well I know a little bit later on they will start to kinda roll the nipple out with their tougns to signify fullness, other than that im not sure.