Who am I?

I don't know

There are times I could be funny and out going, there are times I want to be alone and in peace.

There are times I did foolish things like a child, there are times I could be mature too(well sometimes). 

There are times I love to dance, there are times that I don't.

So who am I, you asked?

I say, 

I can define and redefine myself a thousand times but it is still me.

Yep still me.