I feel like my life has been a sorry little failure?

I'm always making mistakes and doing things wrong. I'm very sensitive and nobody from where I'm from is sensitive at all. I wasn't exactly a straight A student. My life is hellish because people are so obnoxious. I wish it could all be over and I could try again. I remember remarking to another depressed person "I'm just waiting until the day I die", and she cried about it.