Looks like direct costs are $62,000 and aid without WS is $59,000. That’s $3,000 a year plus books and travel costs.
So for first semester your bill would be $1,500 up front and you need money for travel to school and books and some supplies. Did you work this summer, have any money saved? Then as you get paid for your work study you can earn up to $1,500 your first semester, about $100 a week. If you spend less you might have money left for second semester books and travel home. Then you need to work as much as possible next summer.
What about your sister, what other options does she have to continue school that are more affordable? Is she taking the maximum loans she can get? Did she work this summer?
Anything that might help get the cost down to a manageable level for your parents needs to be explored.