Finally, I would guess that a counselor would also be able to point you in the right direction and maybe tell you about school resources that can help you.
My only other suggestion is maybe you can find other working moms at school and start a collective to help each other out? Maybe you can take turns baybsitting each others' kids?
Also, it may be impractical for you and your bf, but I know of a couple who switched off. The dad worked the graveyard shift and watched the kids during the day and then when the mom came home she looked after the kids. At first he was working a full time day job on top of the graveyard but she was able to pick up enough work as a part-time accountant that he quit the day job. She wasn't in school, but she was trying to start her own business and until that took off and she got control over her work hours, switching off worked.
I'm just totally brainstorming now.
Congrats on school and the scholarship though, that's very exciting!