Unhappy Events

What should I do when I'm not happy? Have I ever been happy these days? Friends comparing my appearance, close friend not turning up for outing as planned, friends who talk bad about another friends... I feel like I'm on a stage acting out a play following a script written by someone unknown. So many problems. How to settle all when it comes all in a bunch? Where else can I go to relieve all these???? Sigh!!!!!!!