A lot of times, we expend usefull time trying to bring back our past experiences with a view to check out what actually went wrong. The truth is this; you might not have been the cause of all the wrongs. Maybe its just a matter of misunderstanding on the other party.
Look towards your inner self with joy that you did your best and make life work. Sorround your life with brilliant colours that would make you feel at the top of the world and leave behind ugly scenes of the past. Life can only get more colorful when you let go and step forward to a happier life. That's what I mean by adding colors to your life.