Addictions are our way of seeking peace, comfort, rest, and power to overcome the lack of control we feel in our life.
Addictions are the results of lack of disciple.
Disciple comes through knowledge of what truth is - that God loves you and has a purpose for your life, your choice to submit to God's purpose, and avoiding the lifestyle and people who pursue addictions, and engaging with others who can encourage you in your new life.
Some resources that can help in this journey;
http://www.jesussaves.cc/index.php/english/issue/addiction/