Strengths and weaknesses:
Put down your strengths and make a list of the five most difficult times of your life and see how you overcame those challenges. Be liberal in noting your strengths, for instance, the ability to accept and live through an adversity is as much a strength as is the ability to walk away. Ask your friends what strengths do they see in you and which events made them feel that way? See if you can use these strengths to handle challenges. Do a similar exercise for your weaknesses and for the major regrets in life. If the situation was something that you could not have controlled, then there is only scope for acceptance. If it was something you could have, then accept that you did what you thought best.