I am not an American

I just noticed I have so many "why--?" questions. I am just curious or crazy?
Anyway,
I hate when people try to put me into the frame. I mean, the frame of stereo type of Japanese.
I am fat. I hate cutesy stuff. I am not THAT shy. I speak up when it's needed. I don't dye my hair. I don't have Hello Kitty with me. I don't know anything about Animation. I am not big fun of Sushi. I cannot do Seiza, no more than 15minutes. I don't eat Natto or Rice everyday. I am dark. I hug and kiss for greeting. etc...
Why people say I am not typical Japanese? Before that question, how much do you know about Japanese people? That comment"You're not like Japanese" or "You"re like an Americans".. I get hurt. I think I am naive? or sensitive? But I really don't like categorizing people. Of course there are statistics and certain people/ nationality tend to do certain things but you cannot point out one person and tell that person "You are not her/his nationality" That hurts. And the matter of fact, I get that a lot. I try to think that is a compliment, but I cannot. I am accustomed to American society, yes, I am but I am a Japanese.
Ha.... what should I do? I am just being myself and it doesn't make people think I am Japanese?......................

I guess, I just gotta stop thinking about this.