Our minds do what we tell them to do and make us what we tell them to make us. We are what we tell our minds we are. So quit using identifying phrases like "I am" when referring to negative behaviors. All you are doing is reinforcing the self-imposed image that this is who you are, rather than what you have done. Instead, try using past tense phrasing like "I have been" or "I used to." i.e. "Yeah, I have been guilty of procrastinating" instead of "Yeah, I'm a procrastinator." An even better phrase might be "Yeah, I used to procrastinate, but now I don't."
"You will never change a behavior until you stop the voices in your head that tell you that you can't.
There is no fear of change, only the results that come from it.
Try it, just one time, and prove that you won't die, even if you fail.
Prove the voices wrong, just one time, and you can build a foundation to make a life of change and growth and prove those voices wrong again and again.
Don't think about changing forever though. Just concentrate on the one time.
Can you change your behavior just once?"
"Nobody fears change. We fear the negative repercussions of it. Make a change, just once, and prove it doesn't kill you. Now do it again."