“ In terms of Life, Happiness means that your life energies are happening in a more exuberant way than it normally happens. Depression means your life energy has become low & staid. ”
Source: https://www.youtube.com/watch?v=BA_t1XyZmNI
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External pleasantness needs cooperation from many people. It's not just yours. There are other stakeholders who may want to make it nasty for you. It needs many people's cooperation but inner pleasantness is one hundred percent yours. But why have you not strived for it? 
Independence is my happiness, and I view things as they are, without regard to place or person; my country is the world, and my religion is to do good. 
For your own happiness, you must strive to live free of worldly desires. If there is anything you can't do without, you still have a terrible lesson to learn. 
Life is like topography... There are summits of happiness and success, flat stretches of boring routine, and valleys of frustration and failure. 
Stop giving other people the power to control your happiness, your mind, and your life. If you don't take control of yourself and your own life, someone else is bound to try. 