Start small. Whatever it is you want to change in yourself - start small.
If you take anything in this world that is malleable, and quickly, without care or 'easing into it', stretch it to its absolute limits in an instant, chances are it'll break. We can't expect to change the way we've always thought, behaved, felt or lived, in one single day.
Start small, and make sure you pause to celebrate those little wins along the way.
To listen to my full conversation with Harry Garside search Better Than Yesterday where you get your podcasts.