I've always said that writers have to know how to tune out the world if they're going to get anything done. You have to know how to write in a noisy room, in crowded rooms in a house with pets running around and people underfoot. Your writing environment may be imperfect, but a writer soldiers on. But it has come to my attention recently that you can learn how to shut out the world, ignore those other people at Starbucks, pretend the phone isn't ringing and stay away from Twitter for one more hour...and still struggle in your writing environment. The most important space you will ever work in is your own head space. And if that space isn't right, nothing will be.
Check Your Head
Every book you will ever write is inside your head. You have to pull it out of your brain, word by word, and sometimes it's painful. Sometimes it's difficult. Sometimes you've got phones ringing and stereos blasting and cats screeching. And sometimes, you won't. You could have a perfectly silent room with blank walls and a big desk to write behind with no distractions whatsoever, and you can still be unable to pull those words out of your brain. Because sometimes, it's your own head that's too noisy, and cramped,and cluttered...and messy. This is the writing environment you need to control. And of course, it's the hardest one you'll ever have to control.