What is the average behavior of 13 year old girls?

[❀-Lily❀DBZ-❀]

I turned 13 last month. And I was a little curious of what most of them act like.

From observing girls in my grade.
(I should say class since I'm currently in a religious private school.One class= One grade.)

They mostly babble on about the trendiest videos on Youtube.

Or randomly start singing the latest "songs". (Which to me, isn't music.)

They worry about the number and size of pimples/zits they have on their face.

Worry what others think of them.

Also they tend to create drama over the vacuous things.
It's quite annoying.

Gossip.

Are judgmental towards teachers.

Date or start developing feelings towards the other gender... and announce it to their friends.

Spend their weekends on social networking sites (Instagram,Facebook,Twitter.)

and so on.

Yeah this is all platitude... but its true.

To me, none of these things interest me.Instead I spend my time reading books about our beloved Earth's mysteries or totally lose myself in a book about Philosophy.
Engage myself to build a higher vocabulary.
Sometimes play on virtual worlds.
Draw.
Watch old animes.
Listen to "oldies".
Take photographs of plants,food or anything thats worth capturing.
Sleep.
Or worry about my future.

Im not saying I'm any better. But, I'm disappointed in what I've seen so far. So back to the question. What do most 13 year old girls act like?

Thank you!
*****No Negativity its unnecessary.Sorry for any grammatical errors or disorganization.*******