I applied 3 times before finally geting in this year. I know all the feelings you are having... all too well. The worry of what people will think, the feelings of inadequacy (mainly because all of your friends and family say things like "they are stupid not to let you in" or "if anyone deserves to get in its you" or "you will make the best vet ever!"), the overwhelming depression that controls you.
Those feelings happen - but you are intelligent and talented. You know that a rejection ( or acceptance for that matter) has no influence on your self-worth. You are a highly capable person who will eventually make turn your dreams into reality. You have to listen to crappy file reviews what make you feel worse, but they are useful and important. Take what they say, and follow it.
If you want to talk more, PM me. I can empathize with your situation.