When I had an issue with chocolate addiction, God broke in one day and said - Romans 12:1-2.
A Living Sacrifice
1 Therefore, I urge you, brothers and sisters, in view of God’s mercy, to offer your bodies as a living sacrifice, holy and pleas...ing to God—this is your true and proper worship. 2 Do not conform to the pattern of this world, but be transformed by the renewing of your mind. Then you will be able to test and approve what God’s will is—his good, pleasing and perfect will.
I simply went to God and said sorry asked his forgiveness and declared I was going to honour him with my body. Since then this addiction has been broken and I am free from it's desire. Amen.
In recent months God has also challenged me on my attitude towards food. In the last seven months since submitting to God's way I have lost over two stone and it is still going down. God has done wonderful things and has shown me where I needed to let go and cling to God. I am nearly at my goal now and thank God for his ever faithful mercy towards me.
Whatever addiction or habbit that controls you know that God can set you free if you will give this over to him. What is impossible with man is possible with God.