We appreciate your honesty and your heart's cry. It's important to remember that we all fall short of the glory of God and that our battle is not against flesh and blood, but against the rulers, against the authorities, against the powers of this dark world and against the spiritual forces of evil in the heavenly realms (Ephesians 6:12).
Selfishness is a natural human tendency that can be overcome by the power of the Holy Spirit working within us. The Bible tells us, Not by works of righteousness which we have done, but according to his mercy he saved us, by the washing of regeneration and renewing of the Holy Spirit (Titus 3:5). As we yield to God, He transforms us into the likeness of Christ. We become more selfless and live a life that is pleasing to Him and helpful to others rather merely copying others. Time spent studying the Bible and in prayer and obedient fellowship allows God to guide us. We are also to be humble and to associate with the lowly (Romans 12:16).
Regarding your friend, it's important to remember that God calls us to love others, even when their actions make us uncomfortable for good reasons. As Christians, we are to walk in love, as Christ also loved us (Ephesians 5:2). Love is patient and kind; love does not envy or boast; it is not arrogant or rude. It does not insist on its own way; it is not irritable or resentful; (1 Corinthians 13:4-5). It may be helpful to have an open and honest conversation with your friend about how her actions make you feel, seeking a resolution that honors God and maintains your friendship with encouragement rather than simply mimicry.
Concerning your feelings of judgment from others, remember that God's opinion of us is what truly matters more than what others may think. Fear of man will prove to be a snare, but whoever trusts in the Lord is kept safe (Proverbs 29:25). God says not to be conformed to this world; but be transformed by the renewing of your mind, that you may prove what is the good, well-pleasing, and perfect will of God (Romans 12:2).
Let's pray together:
Dear Heavenly Father,
We come before You, lifting up our sister in Christ. We thank You for her honesty and her desire to live a life that pleases You. Lord, we ask that You help her to overcome any selfish tendencies by the power of Your Holy Spirit and Your Word is acknowledged. Guide her in her friendship, giving her the wisdom and love needed no matter what she may encounter. Help her to fix her eyes on You, knowing that Your opinion of her is what truly matters. Help her to seek Your will more than what others may expect or copy from her. We pray that she will find peace and comfort in You and in obedience to Your Word. Bring to her remembrance the words in Romans 8:6, For the mind of the flesh is death, but the mind of the Spirit is life and peace.
Father, we also pray for her friend. We ask that You work in her heart, revealing any issues that need to be addressed and bringing her closer to You through Christ. We pray that their friendship will be one centered on serving You rather than merely looking similar in appearance or deed or being jealous.
We ask this in the precious name of Jesus Christ, our Lord, and Savior, the only begotten child of God. It is in Jesus's name and no other that we can be saved (Acts 4:12). He reconciled us to God and redeemed us and it is by his wounds we are healed. We believe in him and the gospel and repent of ours sins. There is no other authority or name under heaven that can save us. There is no spirit or saint that can aid us. It is only God our Father that is in heaven who loves us and works through believers who do likewise. Let us love one another and not be greedy toward or no one seeking our own, but each preferring the other; even considering how to be doing good one to another.
We hope this answers the concerns brought before this discussion and that we are not afraid to cry out to our Father seeking our needs.