Are you in therapy? I certainly hope you are. If not you should be, my friend.
Are you a little young to be stating that you cause "undue harm and sorrow in your LONG TENURE as a failure to human kind?" Now at my age of 63, it would make more sense, but at 23?? I'm not laughing at you believe me -- I know that's how you feel. But let's look at reality here -- you have a LONG LIFE ahead of you, with plenty of time to make great strides in life. Just because you haven't found your "glitch" in life yet does NOT make you a failure!!!
Due to your depression, you NEED to get into therapy in order to deal with the issues you have. These are what are holding you back - and it's time you took care of them and faced them head on with the help of a therapist. Please get a referral to a good therapist. You won't regret it.
I wish you the very best. God bless and please take care. Hugs, Lee