First time mum~

Hi! I’m a FTM who just gave birth last week. This week was pretty tiring adapting to the confinement rules and breast feeding~! I’m still learning to cope. I understand that it is best to pump /latch every 3 hours to increase milk supply. I try to wake up every 3 hours at night for pumping but I feel that I wouldn’t have enough sleep though. Is pumping every 3 hours at night necessary at this stage? How do you manage your schedule latching or pumping schedule? Also, my baby drinks about 60ml of milk every time. How do we know if he drinks enough after latching? Thank you!