sacrificing sleep and even time with baby to provide

i have just applied for a position at my hospital ( worked there this year ) but i was a patient care tech working 3 12s a week while going to school. i applied for an admissions position that will be sunday-thursday 11p-7a. i still go to school full time and i will have to go monday-friday. i am due in december and worried about not spending enough time with my baby and even getting sleep. i will get off in the morning and be able to take a small nap before class. come home do homework/study and then spend a few hours with the baby before work.. and maybe even get some sleep in there. he or she will be with my boyfriend from 10pm to whenever i am out of class. of course i’ll have friday and saturday to spend time with the baby if i’m able to get all my school work done during the week. is a few hours a day enough? he or she will be over a year old before i’m done with school and to be able to provide i will still have to work. i live in a small town so there aren’t many job opportunities here. i guess i’m just looking for advice from moms who went through something similar. i’m afraid baby won’t really know its mama. he or she will just know he never went without food, diapering, and clothing.