Ask yourself what you need to start doing, what you need to keeping doing, and what you need to stop doing. These three questions hold the strategy to get you on the right path. Behaviors that you need to start doing will be the toughest of the three. It is fairly easy to stop and keep up routines and habits you already have.
Make sure your goals are small steps in the right direction. Large leaps generally do not work. Small wins will gain you momentum and eventually these little habits will allow you to believe that you can achieve what you are after.
The more habits you create, the better you will become at it. Creating habits can be trained just like anything else. The more quality time you invest into this, the better and more successful you will become. Do not let failure discourage you along the way. Stay determined and adjust your strategy.