When you constantly think about mistakes and try to blame someone else, it can put you in a very negative mind-set.
It is even harder, of course when we are the ones to blame. Accepting that we made a mistake is very hard for some people, and they will often try to shift the blame to others, or exaggerate other’s role in the mistake.
For example: Taking on a lot of debt is normally something we decide to do (for a variety of good and bad reasons). When something goes wrong, and we struggle to repay that debt, we may get angry with the credit providers who offered us the credit. Yes, they share some of the blame, but are they the main reason why we have debt?
Rather than blaming others, or ourselves for our mistakes, why not focus on making the most of the bad situation and finding the best way forward. This is a more productive use of our brain power and emotional bandwidth.