Moms who work and go to school

I’m currently in school part time which is Wednesday-Saturday 8 hour days besides Saturday which is 6. My mom said not to worry about working just go to school and take care of my son and she’ll help me with all my bills ect. I’m grateful she’s helping me this way but I just feel bad about it and my boyfriend makes me feel bad about it to.. and I’ve been having a lot of different medical issues going on so doctors bills are expensive. My mom keeps reassuring me it’s okay and she has no problem helping me. But I want to start working part time to help and take some stress off of her. But if I do that I really only can on the days my boyfriend is off work so I for sure have someone to watch our son, and my mom said if I really want to work she can help with extra days like picking him up when she gets off work from a babysitter. But if I do that I wouldn’t see my son for almost 3 days in a row besides when he gets up in the morning. I just don’t know how to handle that because I’ve always been with him. I stayed home for the first 3 months then obviously only had school to go to so that’s the only time I’m away from him(he’s 9mo btw). I only have about 6 months left of school, but I’ll still have to work for a while because I can’t get my licenses(for what Im going to school for) until schools paid off. What should I do? And how have any of you handled working and going to school and seeing your baby less? :(