Talk to your academic adviser to get his/her advice and also talk to the office of your major area of study to see if you might be able to get a major/career related job on campus that will not only get you money but an opportunity to get to know the inside view of the career area.
Here are some important tips on how to balance your time: https://www.unigo.com/in-college/college-experience/creating-a-workschool-balance-a-college-student-perspective
Network, network, network!: Talk to your friends who are working. Ask if their company is hiring. Ask your parents if they have any friends in the city where you are going to school that can help you find a job. Post your job interests on social media and see if any friends can help you connect with a job. You have a larger network than you think! Here is a great resource on networking.
Work a Seasonal Shift: Many companies, especially sales, will hire seasonally. Know you’ll be around for the holidays? Without school in the picture, you can work more hours and just for the seasonal period while school is out. This is a good way to save some money before cutting work hours for school.
Consider an Internship: If your shallow resume is causing you to have a difficult time finding a job, consider an internship. Most internships don’t pay as well as a job (if at all) but it is the perfect way to build your resume. Find a company or program that matches your career path and ask them about internship opportunities.
Check Online Resources: There are tons of website resources like indeed.com or livecareer.com that will filter out jobs that match what you’re looking for. They even have tools that will help you build your resume! Most companies are posting their job vacancies on these sites so keep refreshing that tab or have the website alert you!
Talk to your student advisors for sure. You'll want to map out the demands of your classes and the study time you're going to have to allot for. From there, you'll have a sense of how much time is feasible to work. If possible, arrange your class schedule with blocks of time where you can work so that you're not running between classes and work. I was able to block off entire days for classes, so that the off days were more flexible.
College is a giant exercise in self-driven time management. Take the help that you can get, try and find balance. It is a great time in your life, so enjoy it as much as you can while balancing the academic and financial responsibilities.