I would definitely recommend taking your father’s advice. He has years of work under his belt and he knows the best way to secure your and your future family’s future is to get a college degree. The unemployment rate for those with College Degrees is far lower than those without, and those with jobs tend to make much more money than those with out degrees. There are exceptions, specifically with some trades, but by and large if you study now, you will be in a much better place to help your family out in a couple of years should they really need it.
Meanwhile, you can always see if there are any part time jobs at school. I use to work 15-20 hours a week for the Computing Services when I was in school; it helped pay the bills, and helped assure access to Unix Workstations I needed to do my project.