I have BIG problems in this area. Trying to analyze. Part of it is simply that I expend so much energy on the "self-talk". My brain is constantly looping to old events and present compulsive fantasies; some sexual, mostly anger-based. And anger seems to be the key to a lot of the procrastination. I can sense, as I start a project, an internal mechanism (that old self-critic again) saying "fuck everybody. fuck the world. fuck trying. don't give them shit. you've already given them enough, and look what they did to you."
Very powerful, this little bugger inside me. And very pissed off. As I begin recovery and take serious steps to silence this inner critic (sobriety, therapy, good ref books) I do find that I'm a lot more productive. Learning to love myself and adopting effective methods to silence the critic have made a big difference.
I highly recommend the book "Self Esteem" by Matthew McKay, Patrick Fanning. It's a lot of work, but the irony of that is that if you don't put in the time, you're learning how little you care for yourself. It has many useful ways to rebuild the battered self-image and wrestle control away from inner demons. If that's too heavy-duty for anyone, I found Robbin's Awaken the Giant Within and Dr. Phil's Self-Matters to be good starter kits.
In every cry of every man,
In every Infant's cry of fear,
In every voice, in every ban,
The mind-forged manacles I hear.