The humility of Christ is absolutely central to living in the kingdom. Peter was horrified at the thought that Jesus would wash his feet, because he didn’t understand the message that Jesus was trying to teach. The Lord made it very clear, If I do not wash you, you have no part with Me. (Jhn 13:8) If you do not lovingly embrace humility, then you completely missed the message of the kingdom.
That humility can only happen when you deal with your own demons. You have to be very honest with God about wanting to be free of selfishness, anger, resentment, fear, and every attitude that does not come from God. Allow Him to show you the evil that you are holding onto and repent. Forgive where you need to. Rebuke the enemy from your life. Don’t hold onto a thing that hinders your full acceptance of God’s work in you.
Be filled with the goodness of God. Be filled with His love so it will shine out of you. Let your automatic response be humble and kind, no matter what you come against. But I say to you, love your enemies, bless those who curse you, and pray for those who spitefully use you. (Mat 5:44)
Don’t think for a minute that you can’t change. That’s what God does best.