I'm not going to say that you might be going through a fase because it used to annoy me to hell when people kept saying that to me.

Give it time, 11 is no age to be announcing your sexuality. Your parents will give you this massive speach about not knowing who you are etc.

Wait until you are comfortable with close friends and family knowing.

I knew i was gay at around 11, and i only came out when i was 15 (last year)