Temptation is normal, especially for Christians. It doesn't mean that you are a bad person, it just means the enemy is using your flesh to try to get you to sin. Even Jesus was tempted, so he understands the struggle. Check out the devos below to find out about what to do in the midst of temptation.
Spiritual Warfare: Remember Who the Real Enemy Is
Spiritual Warfare: The Enemy's Tactics
Unity: Developing Strong Accountability
The Life of Joseph: A Lesson in Character
4 Things You Need to Know About Satan and Demons