I’m not sure why not trusting yourself would cause you to fall more. Chazal took what are considered by many to be pretty extreme measures to help us avoid problematic situations. I have heard people actually ask this about many gezeiros Chazal: Why can’t they trust us more.
If you feel that FB is the type of situation you currently are in, fine. But I didn’t think it was so obvious – as you felt the need to start this thread…