Choice is an illusion. Every choice I make is either because:

a) I am influenced by past experiences to make that choice

b) Because that's the way I'm genetically wired

c) My choice is guided by events in my life at the moment which leave me little room for personal tastes.

I may choose to believe that I have the freedom to make a completely free choice, but then again it becomes a moot issue because belief is probably an illusion as well.

While decieving the self is normal, in both day to day matters as well as the larger issues, to truly understand yourself and your motivations, I think we need to closely examine our choices and determine which of the above three it was that determined this particular choice for us and if it was A or B, what the source was. Identifying what went wrong isn't enough anymore, it's more important to identify why exactly what went wrong went wrong to be able to prevent it from affecting your choices in the future.