"We do not dare to classify or compare ourselves with some of those who commend themselves. But when they measure themselves by one another and compare themselves with one another, they do not show good sense." 2 Corinthians 10:12
We are in a battle. The worldly compare themselves with us, using their standards. "I'm better than you, we're better than you." These are the sort of foolish jibes they send us. With condemnation, an overpowering spirit, and with an aim to belittle us. "Better at what, or in what way?" I might reply. But I don't reply because they are foolish, and to reply ends in more competition.
The worldly boast about themselves, but our standards are God's standards and we are to stand aloof from the ways of the worldly.
Rivalry, forced competition, endless comparisons can distract you. We should cut ourselves off from such things and listen only to God's voice. What is God saying to me about myself, and what is God saying to me about the ways of the worldly who want to compare themselves with me? That is what really matters.
Paul said, "I think that I am not in the least inferior to these super-apostles." 2 Corinthians 11:5 Paul didn't think he was less of an apostle than say the first 11 who walked around with Jesus through his public ministry. Nor are we.
God gives me self-confidence and peace. I am content being myself and comfortable being me. I live by God's standards and am nothing. I compare myself with myself and compete against myself. Even in sports and games I compare my times to myself. I compare my triathlon events to what I do in training. And I train alone.
So ignore the worldly when they compare. It is unhealthy and ungodly. Stand your ground in your faith and outlook, and trust God to keep you strong in the presence of the worldly.