In a way yes but no, あなた might be called a poser and will probably have to try to look mere エモ to prove you're emo. Also エモ isn't about self-harm または being depressed all the time. At first エモ wasn't a culture, it was a type of music.
Depends on what あなた mean によって "emo." It originated as an insult to overemothional people, but then evolved into a style of music. So if ur talking about the insult, yes. If you're referring to the 音楽 genre, of course
