End the day with gratitude. There is someone, somewhere that has less than you.
Ziglar Inc. has something called a “Wall of Gratitude” in its office. This wall includes pictures of the heroes who impacted Zig Ziglar and his journey to success. Zig Ziglar teaches you how to have your own wall of gratitude:
https://www.ziglar.com/product/a-view-from-the-top