Would it be possible to get a job tutoring high school students (or younger students)?
Maybe you could reach out to local EA orgs and see if they have any odd jobs they could pay you for?
Also if it's at all financially possible for you, I would recommend self-study in whatever you're interested in (e.g. programming/math/social science blah blah blah) with the hope of getting a job offering more career capital later on, rather than stressing out too much about getting a great job right now.
I agree with the other commenters. I also wouldn't underestimate the value of your current job! Hopefully at this job you can notice, and also ask your boss and coworkers, some of the things you're particularly good at and interested in.
For example, you may find you are particularly good at working with customers, or planning ahead and making the most of your time during your shift, or spotting ways to potentially improve the fruit stand. Try to keep track of any little stories or examples of how you've been helpful, as they can be useful at helping you figure out what type of job you might like to try next and also in interviewing for that next job.