Funny friend

I have this friend.
she is here,
she is there,
and she is everywhere.

in class,
she starts to sing,
says a little ting-a-ling,
and does her little thing.

she understands math,
choses her path,
yet.......if you get her angry........
you WILL feel her wrath!!!!!!!!

OK........
i am exaggerating,
just don't start hatin`

i get sarcastic,
but she is still here,
even though,
i am the definition of the word fear.

this is all true,
i guess that proves to you,
that i have a best friend,
that will last to the end.