Make a real and honest effort to focus on what you have, instead of what you don’t have.
Of course it’s not easy. We typically whine and complain about how terrible our lives are.
Stop the pity party and start singing a different tune. Turn to G-d, and be grateful for all that He’s given you.
If you feel the need to grumble just stop and think of one thing to be grateful for.
Forget About It!: Based on the Teachings of Rabbi Nachman of Breslov and of His Student Rabbi Nossan of Breslov, by Mohorosh HaKodesh Breslov