Self-sabotage and punishment are more common than you might believe and entirely unconscious... until you realise what's going on! Even then, it takes some hard work and determination to change the conditioning which creates such patterns. You might find some help in Caroline Myss's book 'Sacred Contracts' which lists and helps you determine some of the mental/emotional archtypes which drive us all. The Child, Victim, Saboteur and Prostitute are four types which everyone has. I also found some interesting insights when I did a simple websearch under 'Self-Sabotage'.