What are some ways to earn money when you're 19, about to turn 20 in a month?

Hi! So I'm a 19M as the title says about to turn 20 in a month. I wanted to know if there were any ways to earn a bit of passive income every month as my Dad has been laid off work. I am currently in my 2nd year of studying B.Sc Nursing. I just wanted to take care of my own expenses going forward so that my Dad would feel a little less pressurised to make ends meet. Any advice would be helpful. Thank you all for engaging and taking your time to read.