I just read the book "Way of the Peaceful Warrior". It was a good read. But for your issue, I would take a piece of paper, write down your old habits, then to t

I just read the book "Way of the Peaceful Warrior". It was a good read. But for your issue, I would take a piece of paper, write down your old habits, then to the very right of them, right down the NEW habits that you wish to overwrite the old habits that you have now. Don't give into your old habits, replace them with new ones. Then, only focus on the new habits. Don't think back to the past of your old habits. Even more than that, just focus on PRACTICING these new habits. By doing this, you will reinforce your new habits until you essentially forget how to perform those old ones. In sports, good coaches fix problems with technique (since all of it is habitual motions) by telling their students to do something NEW. They don't tell them to fix this or that. Telling their student to do something new is more constructive than trying to tell them to fix something that already has some flaws to it. Good luck!