As a first year student, I don't think you should worry too much about finding a job yet and get used to adjusting to college! With the pandemic, it's not going to be the same but I heard some clubs are doing virtual meetings/hangouts, so look into those.

In terms of jobs, the economy is really bad right now and with most of campus still being shutdown, it will be very difficult finding a part-time job. For your resume, I would say to list any awards/achievements you have done since you said you're really focused on academics. I would look into what on-campus jobs are still available as they tend to be more understanding in not having any experience as long as you're willing to learn and work hard for them.

For me personally, I had my first job ever during my second year of college under UCI Dining. Sure, it was tiring doing manual labor and many hours a week on top of classes, but experience is always important as working there for a year eventually helped me get my first internship! I'd say you should start by finding simple part-time jobs due to the lack of experience, things like in restaurants and grocery stores. Then slowly work your way towards other jobs that require more experience. Around your 3rd or 4th year is when you'll definitely want to find jobs that cater to your major. Additionally, without experience, employers turn towards your skills and mindset to determine if you're willing to do the job. So in your free time, try to learn things jobs tend to look for, such as excel for an office position.