Let things go that you can never change. Let the sunshine in and have a happy life.
We are all so different from one another. For some adjusting to changes and letting go as well as accepting rejection is almost impossible to do. Coping skills, detachment skills, self love are things to learn. Not every one can afford mental / behavioral health care, people just live hidden sad lives. Very sad when it happens to people you love. ~ Lea Gabbard
Some people are going to leave you in your life 
Holding on to the unchangeable past 
Have faith in what will be 
Life is about trusting your feelings