You were always a perfect 'superhuman' to an infuriating extent, and so that 'habit' was actually one of your cute, or rather charming, attributes.
She has a habit of coughing before she speaks.
She has a habit of biting her nails.
She is in the habit of fidgeting in the presence of others.
She is given to drinking rather heavily.
It seems to me that she has a tendency to exaggerate.
She has a way of keeping old letters.
He was cured of his drinking habit.
He has a habit of scratching his back and biting his nails.
He seems to have a habit of getting on his coworker's back when he makes a mistake.
He has the habit of scratching his head.
He has the habit of standing up when he is angry.
He managed to cure himself of his habit of nibbling his nails.
He has a habit of moving his head up and down when he is listening to a conversation.
He is in the habit of reading a paper while taking a meal.
He has taken to drinking since the death of his wife.
He has taken to drinking recently.
He has a habit of looking down on coloured people.
He acquired the habit of snacking.
He was cured of his bad habits.