You already know bad habits in your life. Face them. You will never correct what you are unwilling to confront.
Resist the urge to justify yourself. Truth is temporarily painful, but it is permanently liberating. Change is possible. Step by step and day by day, start moving towards the dreams and goals of your life.
“Search me, O God, and know my heart: try me, and know my thoughts: 24 And see if there be any wicked way in me, and lead me in the way everlasting.”