I would start by either thinking of 2-3 ways to be productive or 2-3 ways in which I am self defeating and then ways to counter the self-defeating?
Here's some general ideas of self-defeating behavior:
http://www.bottomlinesecrets.com/art...ticle_id=14441
I'd take like the first one, procrastination, and counter that with "take 5 minutes working on whatever activity I'm putting off". I still remember a story from my young adulthood of a kid whose mother wouldn't let him play the piano but a few minutes; because he wasn't allowed to, he really wanted to

See if you can use some "reverse" psychology like that on yourself to learn better ways of dealing with some behaviors you find difficult?