Hi, I have several disorders but the main one's that causes issues is my Avoidant-Borderline and my severe depression 

Today, I got a call about a job interview and immediately I'm panicking and freaking out that I won't be good enough to work, tanking all job interviews I have before (never had a job, I'm 21) and I feel like a failure

I'm not sure I can call back, I'm not sure I can handle a job because I'm in a bad state...but I feel useless and worthless because I can't do anything

What should I do?