When I write, I do it for myself. 
I do it to escape from reality, to hide myself in a story I wish was mine. 
I also do it because it reflects who I am. When i'm confused, angry, mad, depressed, I instantly scribble my feelings onto a lined dusty, worn out, or pristine  piece of paper (the possibilities are endless) and it helps me mend.

So these are the reasons why I write. Because writing helps me run from my damned reality. And except from that, there's not much else to write about myself.