I want to make a change by fighting crime

Hi, my name is Lisa. I'm currently a second year student studying something which I have been dreaming of since forever. BSc Forensic Sciences. I'm studing at The University Of The Free State which is the only university in South Africa that offers this course. After I have finished my degree I want to make a difference in my small town and South Africa and even maybe the world, but things are tough at the moment. My parents are trying their best to make enough money to pay my university fees but they are struggling. I help out in anyway I can by trying to cut costs and working part-time here and there but I'm afraid that this won't be enough so I'm here to ask for some help. I would really like to finish my studies and get my degree.