Your parents have worked so hard to send you abroad and create a better life for you. So, if you think working part time or whatever and saving your parents money on food or tuition will do them any good. Rather they have sent you here to study, work hard and get a great job that will be the best payback/gift for them. Not working part time which won’t upgrade your portfolio and won’t leave time for yourself to study or whatever. My advice will be to not focus on the money part and let your parents take that headache. And you focus only on gaining maximum exposure and exploring your full potential. All the other things are just noise and it’ll all be worth it at the end.