Getting a job

I'm 19 and failed my first year of college because I didn't get help for my depression and missed a lot of class. I got a job at Jimmy John's and was technically employed for a month but I only got to work one day (schedule always full). So since May, I've been job hunting with no luck. The problem is now I kinda dont want a job. I get really nervous and I even skipped a couple of interviews because of it. at the same time I feel worthless and want to work so that I can help pay bills around the house and actually feel like a normal adult. I dont know what to do. After mid June, I had put in so many applications it began to get tiring. I have about 5 or so that I have yet to complete. I also keep putting off calling places I applied to. This is also a problem for me because my medicaid ran out on July 31 and now I can't get a therapist or actual help, so I need a job with health insurance. Life is frustrating and I feel stuck.