Be at Peace
One of my first waking thoughts includes a prayer allowing me to be of service. When I am providing a service to another (without expecting anything in return), I am less likely to obsess over my own large or small difficulties. This keeps me in a frame of "peace" and serenity.
Am I problem free? Absolutely not. Doing this places me in better place, mentally, to work out my difficulties. Does this work every day? Oh, how I wish! However, practice makes perfect.
Peace begins from within. We could use more peace in our world.