How EMO do you want to get?
Clothing style?
Emotional extremes... drama queen... depressed...
My suggestion to Emo's is start your own style that expresses positive emotions as well as the typical. Like you could use colors to reflect your moods.
Colors and Moods
You might want to explain to your dad that you like the style but you are not into cutting and (list of emo stuff not into)
IF your intent is to do the style and not the negatives.