There are a number of prayers that can be used to confess your sins to God. Here is one, I forget where I found it, and you can insert any of the particulars that you wish to seek help overcoming.
O Lord our God, good and merciful, I acknowledge all my sins which I have committed every day of my life, in thought, word and deed; in body and soul alike. I am heartily sorry that I have ever offended thee, and I sincerely repent; with tears I humbly pray thee, O Lord: of thy mercy forgive me all my past transgressions and absolve me from them. I firmly resolve, with the help of Thy Grace, to amend my way of life and to sin no more; that I may walk in the way of the righteous and offer praise and glory to the Name of the Father, Son, and Holy Spirit. Amen.
Just as an fyi, in the little red prayer book it says to read this prayer and then psalm 50 (51) after preparing for confession.