Humans are called the "comparing creatures." Comparing ourselves to others is how we make sense of life. Comparisons can inspire us to grow and change. Comparisons can also provide helpful examples of what we don't want to be. But comparisons without context don't tell the full story.
How do you take off the "lack glasses" that are keeping you from the abundance of your own life? Keep the focus on you and practice gratitude. It's not about going into a comparison and being grateful because what you have is better than what the other person has.
Every choice in life, whether it is about food, lifestyle or our friendships, is either life enhancing or life diminishing. Look at the situation or person and ask: "Is this diminishing or enhancing?" We've all got some dead wood to prune.