Answer:
Rose, from the description given in "My Habits", appears to have symptoms of Obsessive-Compulsive Disorder.
Her parents know this, but her brother Joey doesn't. Rose is aware of her habit, but she is not aware that it's a psychological condition.
At the end of the story, she states that there is something that makes her oscillate between wanting to give up and wanting to retain the habit. She does not like the habit very much because it makes other people uncomfortable around her and as such she has little or no friends.
The only person who does not mind is her friend Susanna. She does not want to lose that friendship as she feels that her habit is the reason she and Susanna are friends and that if she loses the habit, she may lose her friendship with Susanna as well.
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