I was blessed that my parents paid for my schooling, but I don't think it's a "given " that parents have to. I have a friend who is now in her 60's who has a mom like yours. Her mom bends over backwards for the son, but didn't do diddly for my friend's schooling, etc. I don't know if it's a sexist thing (women are supposed to marry a man well off enough to support them) or what.
My husband and I are both on disability. Our sons are both in college and have been able to get government money because we are so poor. Also, some scholarships.
Have you checked into anything like that? Are you on your own or are you still considered a "dependent" on your mother? How about talking to someone at the college about financial aid? I think it's at least something to check into.