Getting a weekend job for a few hours a week might be a good idea as you can earn money and it gives you experience to put on your CV when you want to apply for future roles. However, you need to consider how much time your studies will take up and how much workload you have to deal with. For some people, they struggle to balance their studies with working, which often has a negative effect on their studies and grades. If you have the time on your hands, getting a job is a good idea, but not at the expense of your education.