Overcoming addiction to cam sites?

I've recently developed an affinity for cam2cam sites that borders on being a serious addiction. I've spent about $700 this year despite having promised myself that each $25 purchase would be my last one. In attempting to quit, I destroyed both my webcams, but it didn't take me long to figure out how to use my iPhone as a webcam and go straight back at it. I need to cut this *** out. I contacted my bank and asked them if they could block any future payments between my account and the cam site I use, but they said they can't. Is there any way I can force myself to cut this BULLSHIT out? I cancelled my debit card so that I can't make anymore online purchases for now, but I can't go without one forever. I need a long-term fix.

I don't want to tell you to do something so hard, but I suggest getting a girlfriend. If this task is difficult for you, you can use a dating site. Don't be ashamed, there are other people that use them too.