I have a problem of wanting other people to think well of me… how can I be more humble?
… Of course, I know in my head He’s the most important thing, but how do I know it deep down in my heart? How do I know it so that it changes me?
You ask such good questions! I think you are not far from the Kingdom of God… but don’t let that swell your pride!
This morning, my friends and I were examining tomorrow’s Gospel reading (Matthew 22:1-14). Recall that in the parable, a wedding guest was cast out of the banquet hall because he did not have a wedding garment. Saint Augustine asked, in
one of his sermons, “What is this wedding garment?”
The sermon is long, but skipping ahead to the answer, the wedding garment, as Augustine tells us, is “charity out of a pure heart, and of a good conscience, and of faith unfeigned.” In one word, the wedding garment is love.
Augustine recalls 1 Corinthians 13:1-3, in which St. Paul wrote, if I speak in tongues, comprehend all mysteries and all knowledge, have faith sufficient to move mountains, give all I have to the poor, and even give my body to be martyred,
so that I may boast (Augustine says,
through the love of glory) but do not have love, I gain nothing, I am nothing.
Augustine acknowledges that desire (pride) cannot be extinguished in this life, but he urges us to “let charity increase, and desire decrease, that the one, that is, charity, may one day be perfected, and desire be consumed.”
Getting back to your question, “how can I be more humble?”, I agree with what @jochoa wrote above: serve others, and pray.
Also do not despair. Rather, trust in God’s mercy. Augustine wrote in
another sermon: “See the wedding garment; put it on, you guests, that you may sit down securely. Do not say, ‘we are too poor to have that garment.’ Clothe others, and you are clothed yourselves. It is winter; clothe the naked. Christ is naked; and He will give you that wedding garment whosoever have it not. Run to Him, beseech Him; He knows how to sanctify His faithful ones, He knows how to clothe His naked ones.”