Really I'm Not Too Sure What To Ask Or How

Really I'm not too sure what to ask or how to ask. Really I'd like to be pointed in a direction to understand why I am the way I am. Essentially I am a mirror to the world around me. If I watch a show about computers I must do something with computers. If it's about cars I'm on cars. Sometimes the urge that follows goes to an extreme.Some shows I avoid just for that. If it was just tv or movies I'd brush it off but this thing chases me into my day to day life. When dealing with customers I pick up manerisms. Their speech patterns. I'll change my hair to look more like theirs. If I'm in a room with a bunch of straight guys I become this mister manlyman but when I'm around women I am a princess. Granted I have been envious of women for getting to be women ever since they were little girls. It still doesn't matter. Why can't I just focus on who I am? Why can I not just be one person instead of this person that is so easily influenced that he is compelled to go out and do something involving what he last saw only to have it fade days if not hours after.