Conscience is an inner feeling or voice viewed as acting as a guide to the rightness or wrongness of one's behavior.
Conscience must be informed and enlightened. A well-formed conscience is upright and truthful. It formulates its judgments according to reason, in conformity with the true good by the wisdom of the Creator. Conscience is not used properly with people who are tempted by sin, prefer their own judgment and reject authoritative teachings.
People are sometimes confronted by situations that make decisions difficult. But you must always do what is right and good and respect the will of God. You must think about what the Lord would want you to do, and your actions will follow.