Solitude doesn't have to be a negative experience.
Productive solitude happens when we deliberately seek alone time. And this time should not be used for overthinking negative experiences, but for positive reflection and contemplation or for doing something we enjoy.
Over the past two decades, the positive psychology movement has brightened up psychological research with its science of happiness, human potential and flourishing. It argues that psychologists should not only investigate mental illness but also what makes life worth living.
Hedonistic: in order to live a happy life we must maximize pleasure and avoid pain. This view is often short-lived.
Eudaimonic approach: it takes the long view and argues that we should live authentically and for the greater good. We should pursue meaning and potential through kindness, justice, honesty, and courage.