You’re not falling behind. You’re running a different course with different hills.

Comparison assumes everyone is running the same route, and almost nobody is. The person who looks ahead of you may have had a flatter stretch, more help, or fewer things to carry, and none of that is visible from where you stand. Falling behind only makes sense as an idea if there is one course, and there is not.

Work out what you are actually trying to reach, in your own words, and measure against that instead of against whoever is nearest. When you catch yourself scoring your life against someone else’s, ask what their hills have been. Then go back to your own next step.