Jesus is the author and finisher of our faith (Hebrews 12:2). It is the life of Jesus that dwells in us, not someone else's. We are to be true to that life no matter what men do or say. Following anyone other than Jesus can open us up to huge disappointments in life. Many have fallen because their idol fell. Jesus will never fall and never fail you.
Once you begin to love the praise of other men, you cease to be a true servant of God.
One of the big reasons we compare our lives with others is to get approval. This becomes a big obstacle in walking with Jesus. This will allow others to control and influence you instead of the Holy Spirit because you are no longer seeking approval from the Lord but rather the approval of man.
If you have always wanted to be a puppet and let people pull your strings, then seek man's approval.
But if you want to gain inner freedom give up seeking positive approval or doing things that keep you from negative (dis)approval then seek only the approval of the Lord.
When you give up the need for both the positive and the negative you find that you no longer crave positive cheers and approval from people and you will also no longer have fears of not getting that approval either.
Paul would not have been as effective as he was if he "compared himself with others" or "measured himself with others".
Each person in the world spends his entire life living for himself and comparing himself with others: "they measuring themselves by themselves, and comparing themselves among themselves, are not wise” (2 Cor.10:12).
Milton Green
The Pure Heart - page 3
https://www.sermonindex.net/modules/myvideo/viewcat.php?cid=15
By the way, if you have never heard Milt's Green "The Pure Heart", I highly recommend it.
Also, "How to Walk the Gospel Out", page 1 of the above link
and
"In the Word" seminar, page 2 of the link.