The nice thing about getting older is that labels and niches cease to be important or anything of real concern. Each of us eventually develop our own image and concept. As an adult, you simply become you. Anything beyond that isn't important. So if you like wearing black clothes/eyeliner and listening to emo music, then knock yourself out. If you can live your life and be ok, that's all that matters. Welcome to adulthood.

Self-harm obviously presents an issue though. I imagine/hope you're seeking help for that aspect of things.