For me it was a combination of GA and the help of my boyfriend. I think both of these things were crucial in my recovery.
My boyfriend has access to my online banking. He is routing for me, and will hold me accountable if I gamble. If you have someone in your life who can do this for you, please, please do it.
GA, although I only did about 7 meetings, helped me immensely. Hearing people speaking my exact thoughts and feelings made me feel like I was going to be okay.