I understand your concern; young people today are subjected to pressures and temptations that those of us who are older never knew. Our society also has become increasingly secular in recent decades, and many young people today grow up never thinking about God or believing in Him.
In spite of this, I find young people today are searching for answers -- and as a result many are turning to Christ. Through our television programs and the evangelistic meetings our organization sponsors across the world, tens of thousands of young people are coming to Christ every year. They've realized the emptiness of the world's promises, and have discovered that only Christ can give them the peace and lasting joy they seek. They know Christ's words are true: "I have told you this so that my joy may be in you and that your joy may be complete" (John 15:11).
Yes, Satan is at work today; his evil hand is seen all around us. But God is also at work! God alone is sovereign, and some day His kingdom will come, and His will "will be done on earth as it is in heaven" (Matthew 6:10).
In the meantime, pray for young people you know. Pray, too, that God will work in the hearts of young people all over the world. Pray especially for evangelists and pastors who seek to reach youth. Don't give in to despair, but thank God for all He is doing among young people today -- and ask Him to use you to touch those around you with the love of Christ.