Desiderata
Go                 placidly amid the noise and haste, and remember                 what peace there may be in silence.
As far as possible without surrender be on good                 terms with all persons.
Speak your truth quietly and clearly; and listen                 to others, even the dull and ignorant; they too                 have their story.
Avoid loud and aggressive persons, they are                 vexations to the spirit.
If you compare yourself with others, you may                 become vain and bitter;
for always there will be greater and lesser                 persons than yourself. 
Enjoy your achievements as well as your plans.
Keep interested in your career, however humble;                 it is a real possession in the changing fortunes                 of time.
Exercise caution in your business affairs; for                 the world is full of trickery.
But let this not blind you to what virtue there                 is; many persons strive for high ideals;
and everywhere life is full of heroism.
Be yourself.
Especially, do not feign affection.
Neither be critical about love; for in the face                 of all aridity and disenchantment it is as                 perennial as the grass.
Take kindly the counsel of the years,                 gracefully surrendering the things of youth.
Nurture strength of spirit to shield you in                 sudden misfortune. But do not distress yourself                 with imaginings.
Many fears are born of fatigue and loneliness.                 Beyond a wholesome discipline, be gentle with                 yourself.
You are a child of the universe, no less than                 the trees and the stars;
you have a right to be here.
And whether or not it is clear to you, no doubt                 the universe is unfolding as it should.
Therefore be at peace with God, whatever you                 conceive Him to be,
and whatever your labors and aspirations, in the                 noisy confusion of life keep peace with your                 soul.
With all its sham, drudgery and broken dreams, it                 is still a beautiful world. Be careful. Strive to                 be
happy. 
© Max Ehrmann 1927 
Whenever I feel down or lonely, or the world is unfair, I always read this poem and almost always this poem makes me feel better. I hope you find time to read this again and again when you feel lonesome, hurt, treated unfairly.
God bless your heart <3 Smile!