It can be a psychological trick you are playing on yourself by just putting it out there in public. Lots of people now know about it so you don't want to let them down by misstepping again.

In a way it's a form of holding yourself accountable.

I'm not sure how rehab works but I guess the first thing you need to do is to admit that you have a problem. And then you need to find ways to prevent yourself from giving in.