Writing Descriptions: Setting the Scene

Why do you write?

I don’t think I’ve ever sat down and asked myself this question. Got to the heart of why it is that I write. I have always written, and can’t ever see that stopping.
Is it a calling, is it a vocation, is it a hobby? For me personally writing is a calling. In all of my life its the only thing that has stayed constant. Which is saying something. I don’t really have anything else in my life that has stayed constant. I’ve had periods of my life where I lived somewhat  nomadicly, I have cycles in and out of living with people living alone, living with children, of course living with my parents. I have cycled through many professions, interest, and locations. And in all of those times and all of those things the one thing that stayed is writing.
My biggest frustration in life is my inability to fully realize my writing. Its systemic of my inability to stay on task. I am the quintessential procrastinator, I am massively ADD, and my decisions to do new things in the middle of doing other things is legendary. I have literally started doing something in middle cooking and forgotten my food.
I’m working on this, in fact in my never ending quest to become the best me in the world I am reading:Cathy Yardley Write Every Day, and as well as Write Good or Die.  These are just two of the books that I found about not just writing but what stops you from writing and how to get past. In write every day there is practical tips about dealing with friends and family members as well who tell you things like just write. 
I’m pushing through because my novel is actually close to completion and I have spoken to one publisher and I’m in contact with a few agencies as well. I’m not sure which is the best course of action but I guess I can figure that out as well.
Please feel free to give me any of your insight encouragement and your own experiences with procrastination, stagnation and generalized fuckery.