In the first case, the character's enemy is the storm, as it makes him unable to reach the airport in time. Therefore, the conflict is one against nature. In the second case, the woman is angry at the treatment of women in the world. As this is a widespread practice, her conflict is against society. In the third case, the speaker is engaged in conflict with his parents, because they do not allow him to go to the movies. The conflict is one against others. Finally, the woman speaking struggles with her own selfishness, making the conflict one against her own self.
Explanation : As described in the above lines Heigl is trying to face her fears in public by speaking the feelings what she is experiencing within herself. She is building her confidence by openly expressing and facing the fears within her.