Self sabotage is one of the most misunderstood concepts of trading psychology.
EVERYBODY self-sabotages in many areas of life, and trading is no different.
The term "self sabotage" is a negatively-charged term, that brings out unnecessary feeling of self-judgement, shame and inadequacy and thus holds people back from dealing with the issue and solving it.
A better term is "secondary gain". What actually goes on is that we are subconsciously, yet purposefully SACRIFICING OUR TRADING RESULTS in order to achieve ANOTHER, MORE IMPORTANT GAIN.
For example, if we're in it for the action.
Or if we need to feel like a genius and take remarkable trades to show off.
Sometimes we're PROTECTING OURSELVES from negative implications of success.
For example, we may fear the vultures in the family raiding us once we make money, or our spouse and kids going on ravish spending trips and digging us even deeper in the "need to make money" cycle.
Or we may be afraid of becoming "mean and manipulative" like our uncle did when he became rich.
Either way, self sabotage is not "a mental disorder". It's the mind's way of solving a MORE IMPORTANT problem using trading mistakes as a tool.
Once we figure out the reason for self-sabotage (and there are simple techniques to do so professionally), it tends to work itself out rather quickly.