Temptation comes to everyone, but the enemy focuses many of his attacks on those who are young in the faith and those who are making a difference in the kingdom.
After our conversion the devil is there, tempting us to doubt our own salvation. He whispers in our ears, "You think you are saved? You think Christ really came into your life? Are you crazy?" This is just a tactic the enemy keeps recycling again and again.
The Bible tells us that when we are young in the faith, we are especially vulnerable. We see in the parable of the sower that young believers are immediately attacked. Jesus said, "And these are the ones by the wayside where the word is sown. When they hear, Satan comes immediately and takes away the word that was sown in their hearts" (Mark 4:15). He is there to attack those who are young in the faith.
Temptation also comes to those who are making a difference in the kingdom of God. First of all, he doesn't want you to come to Christ. But once you have made that commitment, his next strategy is to immobilize you, to get you to compromise yourself and be ineffective. He doesn't want you to be a threat to his kingdom.
If you want to make a difference, if you want to reach people who don't know the Lord, then don't expect a standing ovation in Hell. The enemy won't take it lightly. He will attack you. You had better expect it. Brace yourself for it, and pray for other believers, whether they are new in the faith or are already making a difference.