I am studying computer science and I have money to pay for my university study, but I do not have money to spend on entertainment such as going to cinema with my friends in the weekend or upgrading my laptop. I have applied for a job at McDonald's. My shift is 4 days per week with 7 hours per day.

I am scared this would affect my grades. How can I balance my studies with the part-time work I must do in order to improve my living standards or afford a social life?