One thing is for certain, EVERYONE has old wounds. How you choose to keep past misfortunes locked inside your head, affecting your entire future, is a mistake that only you can change.
What I've done, and this really, really helped, is this:
Read books (Running With Scissors, Three Little Words) and watch movies about others who are less fortunate. Reading about famine-torn areas will remind you to stop complaining about dieting. Reading about the plight of women who have no rights (early China, Afghanistan) will remind you to value your freedom. Watching a movie about prisoners of Aushwitz will remind you to breathe deep and live life to the fullest, NOW. Watching a hoarding reality show will help you to get out of debt and curb an addiction to spending.
For me, sinking into the extreme situations that can take over a life via a book/tv show/movie helps to put in perspective the complaints I may have. Realizing that I have to take the bull by the horns and get on with life and a better outlook, for and by myself, is what heals my old family wounds.