Failure is causing deep depression. what should I do?

Lara, as long as you "bring" those feelings of failure to each interview you will not get that job, RELAX be positive (even if you want to be negative) you are educated, you have advantage but perhaps the way you behave (too needy or desperate) during the interviews give the interviewer a bad "vibe" try to relax during the interview and imagine yourself getting the job, imagine that you DID get the job, what can you bring to the company? what can you do for the company? talk about how you can become an et to that company (not a liability) Good luck.