22 male, hating my job but need to pay bills with just one year of college left. What do I do ?

Hey all, l've found myself in a weird spot that is starting to drain me. I work at a restaurant that I have worked at for over 3 years now, and it is becoming unbearable. I have debt that I am trying to pay off, and this job is barely getting me by. I've plateaued here, having worked my way up through serving bartending and now managing.

Thave a summer semester and 2 full semesters left, pursuing a degree in interdisciplinary studies. This was the most expeditious route, and with several business credits that could go to a minor. Problem is I have not a clue what it is I want to do with it.

I suppose my question is what do I do with myself? I desperately want a new job, but with rent to pay l'd really need a secure next gig, but with being almost done with school do I just thug it out at this job? How do I find out what it is I want to do?