I remember when I was in college. I had work study, Section 8 (housing allowance) and food stamps, and all my bills where covered as long as I stayed enrolled for 6 credit hours a semester. I am going back to college. Are there any other income sources I can tap into that are not normally available to someone who is not enrolled?
I had supplemented my income by offering tutoring help. I knew foreign students who weren't legally allowed to work so all their work was for cash.
It is easier now because of the gig economy and social media. Whatever you are good at doing, just post an ad on Craigslist; say painting or handiman work.
If you can get a desk security job, that has the advantage of getting an income while you can usually study.