im 14 i dont know who i am?

i so confused with my personality style ect when people say be yourself i dont know how to be myself im italian,greek,spanish but i dont know my roots to well i speak greek and im learing italian and im taking spanish for gcse music i like eminem but i like frank sinatra which is weird coz yyou either like one or the other style i would wear tracksuits with a top or ill wear a dress and heels i love the highend look armani jeans gucci purse but i cant decide my style im nly 14 help how can i find myself