Baby feeding schedule??

Julii
My baby was born at 34 weeks via c section and was in nicu for two weeks ... He has fluid in his lungs when he was born due to the c section and went to nicu then he got jaundice n den he was heathy but didn't know how to suck swallow .. Anyway I was sent home with a feeding schedule. I feed him every 3 hours day and night.. I am a single mother and I only had my son for a week but I am exhausted and I am having trouble keeping up with his feeding schedule.. If I sleep an hour or two m a day it's a miracle ... Was anyone sent home with this schedule... How long did it last?? Did you keep up with it?? What did you do in the night time?? I have no one to help me n I am borderline exhausted ...