How can one deal with the continuous harassment a young man faces because of his good looks, and are there any tips to avoid falling into what displeases Allah Almighty?

What you have been exposed to is abuse and unlawful sexual harassment, and a crime committed by those who did it. You are the victim and you must not give in or remain silent about this injustice; rather, you must resist it, expose the perpetrators, inform the authorities, and document their actions. It is not permissible to conceal such aggressors. You should seek help from a psychotherapist, share the matter with your family, avoid places where you were subjected to abuse, and be careful not to be alone with anyone.