Just think about the good, when you're having problems. Because even when you think nothing is going your way, best believe there really is something good happening. Rather it's good or bad from your eyes.
Your greatest weapon against stress and negativity is your ability to choose one thought over another. Happiness escapes from those who refuse to see the good in what they have. When life gives you every reason to be negative, think positive. -- read: http://www.marcandangel.com/2015/08/30/4-questions-that-will-change-your-attitude/