Am I missing out on my teenage years?

Well, as some may know, I'm 15 years old. But I rarely talk to other teens my age. Cause I think that most teens these days are nothing more then mindless sheep. and I always feel like I don't fit in, cause most teens listing to pop and rap music, I listing to heavy metal Death Metal punk Rock hard rock and Gothic rock. And most teens now days all wear the same thing like skinny jeans or have their pants down to their knees, I always wear black or blue cloths. And everyone always hang out with a big group, doing the samething over and over again, while I most of the time Hangout by myself. And I only have 4 or 3 friends. But everytime I see all bunch of teens in an group having fun, I always feel hatered, then jealousy. Then when I see one of my 4 friends hanging out with a group of friends without me, I always feel left out you know. So does anyone think that I'm missing out on my teenage years? and what should I do?