Start by concentrating on a single element of your being, be it a negative one (anger, laziness, procrastination, etc.) or a positive one ( empathy, kindness, sense of humor, etc.). See it for what it truly is and how it affects you and/or those around you.
Set your goal to minimize the negative trait or maximize the positive one, depending on which trait you decide to focus in on. Purposely set aside about an hour or so a week to ruminate or meditate on only that one element. It will work wonders.
You will find less distress in your life, and you will have more joy and purpose. You will expand the spiritual being inside you, the spirit which acquires more energy from within and from all around you. That potential is yours. Just commit yourself to try it.