Jobs in College

Hi! I'm in my final year of high school and I want to study computer science at University. It's always been my dream to go to college and learn. I studied a lot in high school and I participated at many competitions, so I didn't think I would have troubles in going to university. However, now I've found out my parents can't pay for my tuition fees and living costs. Also, there are no loans I can take out (I'm not in the USA, but EU).

Is there any job I could take as a student in order to afford to go to University? I would love to work in a field related to computer science, but I'm not sure I could find something.

Thanks a lot, any advice would mean a lot to me!