What does gratitude help you accomplish?

I look at Gratitude as a form of mental health. When I stop seeing positives in my life, I start feeling upset and frustration sets in and then I get mad and intern affects my family. If I am happy, my family is happy. The last 20 years was a ungrateful period of time for me. The next 20 years I have to make up. The world needs more positive people, and less angry people.
Life is living your path happy, and no regrets.

It makes me reflect on the day positively. It means I can end the day in a positive frame of mind and adjust my plans for tomorrow accordingly. Basically going to bed on a good note puts everything into perspective and it helps me sleep better.